Full text of "Mining and Scientific Press (July-Dec. 1914)"

MINING PRESS

VOLUME 109

JULY TO DECEMBER

1914

Mining Press

420 MARKET STREET SAN FRANCISCO, CALIFORNIA

1
I
8

•0
59
>4
10
10
)2
19

77
09
8R
01

sc;

25
19

INDEX

.1.1 ii.

■ « Prraeni condition! .it Ploche,

Atr:

p i lo r

California

Abru

■ii fatalities, v s coal mini

I'r- v . i. tt. .11 v compensation IV. ink II. Tr. .

mataj mil

\ llaaka

California Commission report

\MMriiiiii. hoisting

\ n ta. Simple mlna

Adsorption, phenomena <>f

:«mpnis and altuatlona Editorial....

ithwest. export

Agriculture. Department of and Agricultural G

Ings

Editorial

Ahmo.k Copper Mining Co. Kenrsnrg,-. Michigan ...2.12.

Air compr. - Driven porlublo

Compressor, rotary

Compressor. Variable volume

Depletion In mines

In mines, nnd gasoline locomotives

AJax GoM Mining Co.. Victor. Colorado

AJo ores. Leaching experiments on- I. II. Ill

Stuart Croaadale. .. .209, 862,

Akoko mine. West Africa B14,

Alabama, coal production

Coke production 80,

Iron, pig. production

Metal production

Aladdin Mining Co. and Chambers-Ferland MlnlnK Cm,.

Ontario

Alaska, accidents

Rarlte deposits near Wrangell . .Ernest F. Burehard ....

Bethel district

Broad Pass district reported discovery and Stephen

Birch

Ditto Editorial

Castle Islands barlte occurrence

Chicago Bench suit

Chlsana district 156. 227. 229. 348. 500. 501.

Chlsana district map

Chlsana gold yield

Circle district mining

Coal-bearing area

Coalfields map

Coal lands leasing Editorial....

Coal lands leasing bill In Senate 498.

' "..r.lova district

dova district, map

Coal lands leasing bill

Dogmoblles Editorial ....

Dredging

Eagle district mining

Fairbanks district gold production

Fairbanks district, placer mining E. E. Hurja. . . .

Fairbanks district production

Glaciers

Gold production . . . . >

Government railways

Hydraullcklng

Idltarod district gold production

Idltarod-Ruby district

Innoko district gold production

Iskoot River district

Juneau district history and outlook

Ketchikan district

Ketchikan district and war

Ketchikan district. Mining revival In the. .EE.HurJa. . . .

Klondike district dredslng

Koyukuk mining district E. E. Hurja. . . .

Kuskokwlm River district

Map of

Mineral production

"Mineral Resources of Alaska'

Mining In the Far North Emll Edward Hurja

10. 69, 103. 152. 225. 261. 568, 769. 848, 887.

N'flchlna district

Nlzlna district 226.

Nome beaches

Nome business

Placer act decision Editorial....

Petroleum production

Railroad

Railways surveys report

Ruby District gold production

Uuhy-Tnnnko-Iditarod gold districts

Seventymlle District mining

Seward and the Kenai peninsula E. E. Hurja. . . .

Seward Peninsula and its mining problems

F. Lynwood Garrison

'•is
691

111

s?s

4 51
787

:?:•

191

ST.'
.-.,',.:
C24
124
;:■:•
608
•'is

291
856
68 l
684

631

152
820
87]
160

.497

16 9

::is
422
617
28
698
ss:
308
312
277
571
225
4 99
615
239
720
sss
422
965
961

590
156
886
656
• 656
656

69
152
734
617

10
ir. i
416
6 56
122
820
776

965
657
500
910
1006
1
935
34 8
734
656
534
SRS
341

907

• ward Peninsula ,
sii.r,,, k Iron deposit
Tanana River distrli I

Tin ilepi, nllH , .

Tolov ma dlatrlol cold
V. H i woi k

Valdai ,Hi,i Prli William Bound

,, , Emll Ed« i.i ii

Willow Creek district, Cyuldlng tailing

W i. hopper Creek district

w rangell mining district

Yukon rlvor

Masks Consolidated Copper Co

Alaska Crow >"i,-.k Mining Co

Alaska Bbnei Gold Iflnei Co,

And Consolidated California-Nevada Co

Alaska Qastlneau Mining Co

I •• « elopmenU "f tin B. B. iiurjn , . . .'

Perseveranc« mine concrete head*frsme ......

i". T Jscki
Gold Mines Co 81

Compan) report

Developments of tin- irja. .'.'.

Sheep ' !reeh tunnel

Uaeka Juneau Qold Mining Co

Alaska Mexican Gold Mining Co. i

Alaska on & Refining Co

Alaska Syndicate, Bonanza mln.-

Jumbo mill,-

Alaska Treadwell Gold Mining Co. ..162, 193,

684, '.

Accident

Cyanide plant. Concentrate treatment costs

W. P I.
Alaska United Copper Exploration Co. ..193.

Alaska Venture Syndicate, i>t d ii.

Alboline and petroleum production

Mexo nickel mine. Ontario 504,

Algoma Steel Corporation

Alice Gold & Sliver Mining Co. v. Anaconda Copper Min-
ing Co

Alkalinity estimations

Allen. A. W Milling In cyanide

Ditto Northwestern Australia and Its mineral

resources

I'ltto Solution control In cyanldatlon . . . .

Ditto Titration results In cyanldatlon . .

Alliance Mining Co., Republic, Washington, and Anaconda

Gold Mining & Reduction Co

Allls-Chalmers Mfg. Co.. Little Wonder battery stem guides

Allouez Mining Co., Allouez. Michigan 232.

Alloy, antimony In

(.old and silver

Silver-copper v

I*. S. production

Van Gundy

Alps Mining Co., Ploche. Nevada

Alsace-Lorraine, Germany, mining

Alta Consolidated Mining Co.. Alia, Utah

Alta Tunnel & Transportation Co

Aluminum, alloy for silver

Prices 199. 3SS. 641, Tin,

Relative natural and commercial scarcity of the metals

Edwin C. Eckel. . . .

U. S. production

Amalgamated Copper Co.. Montana

Amalgamated Ploche Mines & Smelters Corporation. Ploche,

Nevada 4 62.

Amalgamated Zinc (De Bavay's), Ltd.. Broken Hill. New

South Wales, company report 724.

Amalgamation, Rhodesia .

Si lver ores

South Dakota mills

Amber. .

Germany, East Prussia production . ^. .

America. Production of radium Charles H. Viol....

American dredges for foreign countries ....Editorial ... .
American Association of State Geologists ...Editorial....

American Rrass Co.

American Committee, The Editorial

American Cvanamid Co

American Exploration Co.. Park City, Utah 233. 312.

American Flag mines, Utah 233. 312.

American Girl mine. Arizona

American Gold-Copper Mining Co.. New Mexico

\merlcan Institute of Chemical Engineers. Philadelphia

and George Otis Smith....

American Institute of Mining Engineers and Congress

Editorial. . . .

Pittsburgh meeting. Bureau of mines experimental mime

Pittsburgh meeting Editorial ....

Pltto Editorial correspondence....

Salt Lake Cltv meeting

Ditto Editorial. . . .125

San Francisco section Editorial ....

American Locomotive Co. notes taken up ....Editorial....
American Meerschaum & Pipe Corporation, New Mexico .

946

.'HI

973
108

•8

103
694

227

198
820

ill 7
693
977
421

27
188

321

:..'7

2 17

896

:,si
874
846
188
188
1H2
22
485
451
537
895
415
781

182
861
652

483

1013
188
300
924
924
924
443
432
319
420
669
854
1010
1010
892
819

906

169

877
509
588
301
239
5«6
125
819

176461

MINING PRESS

Vol. inn

Page.

American Mining Co.. California 423

Amerl. ;in Mining Congress, P nix mewling r. 7 1 . B69

Dltti Editorial 58:.. 788,

President Wilson's letter 906

American Museum of Safety, Safety and Sanitation c<> n -

New York 1005

Amere 'nine. Colorado

Am,T um Society Editorial.... 86

Am. Tie:, ii Rullle Co., Roseland, Virginia Editorial.... 983

an Sm< lling & Refining Co 272, 536

I'll'" Editorial. . .

An, i Riverside Dairy & Stock Farm

Chihuahua plant 77. 774

"'h-nuahua smelter Editorial.... 126

< 'ompany report 497, 581

i topper prices 662

Lead production 889

Mexican plants 419. 458

v Federal Mining & Smelting Co.. . Sidney Norman ... . 339

Amerl, an Turquoise Co., New Mexico 819

American Zln. bead & Smelting Co 68

HIllSbOTO, Illinois plant E. H. Leslie. . . . 280

Amur. Held mining on the W, H. Shockley. . . . 249

Anaconda Copper Mining Co.. Butte. Montana. 30. 110. 121.

424. 461. 503. 580. 7S1. 852, 931. 934. 975. 978

I""'' Editorial 203

And Butte & Duluth loos

And International Smelting & Kenning Co

Barbed wire defense Editorial.... B29

notation Editorial 829

Abor conditions Editorial.... 318

Labor union trouble Editorial.... 360

Mountain View mine fire 351. 384

Slime concentrator 238

V. Alice Gold & Silver Mining Co 27

Anaconda Gold Mining Co., Roubalx, South Dakota 1005

Anchor Tin Mining Co., Tasmania 65

Andrada Mines. Ltd.. Portuguese East Africa. Handling

I'oulders L. C. de la Marllere. .

Anglo-Westphallan Kent Coalfield. Ltd

Antelope Springs Mining Co.. Nevada

Anthracite culm

Antimony Editorial. . !

Alloys

And war '. .'.369*,

Canada, New Brunswick

Marketed by brand Editorial...

N.-w Zealand production

Prices 35, 199. 388. 511. 704,

Sulphide ores, process for treating

f ice

U. S. production

Uses \

Antelope <;->l,l Mine. Ltd.. Rhodesia

Antelope Spring Mining Co.. Humboldt, Nevada

Anyox mine. Granby Consolidated

Apex r r i . . Gauf, Rand

Application of Notation to gold ores John Bevan....

Of Jigs to gold dredging James YV. Nelll

Ditto Editorial

Argnll. Phillip . ...Slderlte and sulphides In Leadvllle ore
II

Ditto. , , .Slderlte and sulphides In Leadville ore deposits

— a correction

Argentina Imports and exports

Mineral exports

Mineral resources

Mining In '

Rosarlo district, wolfram exports ,

Trade entension to Editorial....

Argo Mining, Drainage, Transportation & Tunnel Co..

Springs. Colorado, mill practice

Argonaut Mining Co., Jackson, California

v. Kennedy Entension Gold Mining Co., decision ....28.

Arizonia, Aj ipper mining district

'liamond-drllllng tests

Camp revivals

Cedar district

Finnabar discovery

Employment of foreigners ....'..!..!

Gila county division proposed .,

ind Gulch mining district

Juniper Flats gold discovery

Map ' _

Mineral production '.'.'.'.'..'..'.'.

OUnty mining districts

nix, American Mining Congress ..574. 868

Ditto Editorial 585. 788.

Phoenix, first-aid contest

Arizona Commercial Co.. Globe, Arizona 114

Arizona Copper Co.. Ltd.. Morencl, Arizona 121. 313

„ , 348. 422, 530. 657, 856,

Smelter costs

Tax suit

Arizona Copper-Gold Mining Co.. Arizona ..".'!.'

Arkansas, - ion

Miner;:! proline! ion ..."."!!

Bstlmatlng Basil G, i

IS for treating

White, r. s production and consumption 562 661

Aril fie i .ii respiration

As war looks In London T A Rlckard""

320. 362. 391. 131. 472. 517.

Asbestos. California production

i mine West Afrloa 217 si V

Aslii" I Co.. Japan, dust chambers at smelter ....
Asphalt. Alsace-Lorraine production

F. s. production and consumption

Assay outfit. Portable Theo A Flack

Platinum Frederick P. Dewey

Assaying and sampling Cobalt ores

Assessment suspension hill, mining

Work exemption of mines

7«J

925
975
768
7 If,
846
732
970
743
919
899
1 18
3 611
861
847
959
576
015
73
413
839
903

I is
792
918
794
17
848
829

833
157

61
383
415
191
574
156
816
618

74
193
617

74
855
906
903
855
229

1006
223
734

1006
80
664
822
(12
149
64 8
765

868

496
13
451
664
491
20
605
652

Page.

Assets Realization 6x

Realizing Mines Corporation, Los Angeles 830

Associated Gold Mines of Western Australia. Ltd., Kal-
goorlle. Western Australia, and North Thomi

mine. Ontario 819

Company report 315

Associated Northern Blocks. Western Australia. Ltd.. Vic-
torious mine, Ora Banda 697

Atlanta Mines Co.. Goldfield, Nevada 76

\tlns Mining & Milling Co.. Sneffles. Colorado 82-

Atolla Mining F,,„ California sjt

Atomic weights for 1915 375

Attempts at d<toiestlc tin production Editorial.... 790

Augers, pneumatic 378

Aurella Crown mine. Washington ,

Aurora Consolidated Mines Co.. Aurora, Nevada 158, T7>".

\n,l Gol.llleld Consolidated Mining Co 30

New mill 57. "462

Austin, Arthur, death of 78

Austin. b. S Smelting costs and prices for

silver-lead ores 170

Australasia, explosives Imports 886

Federated Engine-Drivers' and Firemen's Association.. 876

War effects In Editorial.... 471

Australia, bismuth production 590

Copper production 120

73
693
317
15
471
513
73
321

Electric work

Government coal mines

Grinding pans Editorial

Jam and the Malay tin Industry

Mineral production value Editorial

Mining conditions .. Editorial

Molybdenite

Northwestern, and Its mineral resources. A. W. Allen

Tin deposits map 651

Zinc ores and Joplln district Editorial .... 625

Australian tin mine, Tasmania 65

Australian Institute of Mining Engineers, Melbourne meet-
ing 73

Austria. Ichthyol production 447

Austria-Hungary copper production 120

Smelters 354

South American trade 792

Auto reduction in the precipitation of metallic gold

Victor Lenher.... 411

Trucks for ore transport 508

Automatic rope lubricator 980

Autotractlon drill rigs 84. 328

Babllonla Gold Mines. Ltd.. company report

Bachelor-Khedive Mining Co., Ouray, Colorado 822.

Baffle

Bagasse In sugar refining

Hallev Cobalt Mines. Ltd.. Giroux Lake, Ontario.. IS
Bain. H. Foster ... .Rand banket. Horwood replies to d's-

cussion . . . .297.

Bains. Jr., Thomas M Machine drilling efficiency. . . .

Balaghat Gold Mining Co., Ltd.. India

Balaklala Consolidate,! Copper Co.. Kennetl, California..

Company report

Balbach Smelting & Refining Co.. New Jersey

Balkan mine. Alpha. Michigan, accident

Ball-mills. Ilardinge. and cemented gravel

Baltic mine. Michigan. Copper Range Consolidated ... .418,

424. 655.
Bancroft Hcwland ....Some tailing dumps In the Peruvian

Andes. .

Bandmann. Charles .1.. death of

Bank of England Told reserves Editorial ....

Bank of Germany gold reserves Editorial ....

Bai'lte. Alaska, Castle Islands occurrence

Deposit near Wrangell, Alaska. Ernest I* Rtirehard. . . .

II. S. production

Barnato group. Rand

Barnes-King Development Co.. Montana 701, B23,

Company report

Plegan-Gloster mine 503,

Barr, .Tames A., confusion of two Editorial....

Barstow mine. Ironton. Colorado

Bartlesvllle Zinc Co.. Colllnsvllle smelter '• II Leslie....

Bartlesville. Oklahoma, smelting practice

Barytes, California production

U. R. occurrence

U. S. production 104,

Basalt. Ireland production

Bates Leasing Co., Colorado

Batopllas Mining Co.. Chihuahua 126,

Battery house and crawl girders

Stem guides. Little Wonder

Bauxite. Arkansas

Ireland production

Bead bake Gold-Copper Mining Co.. Washington

Bearing metal. New

Bearings, cam-shaft

Beaver Consolidated Mines. Ltd.. Cobalt. Ontn**|o

Beaver Gold Mines Corporation. Utah, Sheep Hock mine..
Beck Tunnel Consolldal.d Mining Co.. Sliver Citv,

Utah 117,

Becker. Clyde M Sulphur deposits of southwi

Texas. . . .

Beehive coke oven, temperatures

Beet sugar residue and cyanide, Germanv

Belcher silver Mining Co.. Gold Hill. Nevada 659,

Belgians, Help the Editorial

Belgium, neutrality Editorial ....

Relief work, and California engineers . . . .Editorial. . . .

Smelters

South American trade i

Zinc production Editorial....

Bell Reef Development Co.. btd., Rhodesia

Belt conveyors, new use for

Ben Hur Leasing Co.. Republic. Washington 435,

707

931
223
815

779

996
843
255
879
581
889
306
430

658

.805
738

743
743
348
371
3 is
112
975
310
658
317
822
21)1
41
929
412
412
552
777
652
729
-,sl
661
552
660
567
567
702
117

296
496

729
S95
711!)
359
903
.IT, I

T'c:
278
959
SI
537

I If I

MINING PRESS

■

III

l
.. '

■ ' ■'■• • i |

iim-iii (-in RtndK h

trni ■ j ■ . ( Inn I " .

-'• lh ".t.l bomln , , . -

Uaaka Bra id Pass District

uniru. i ' .

1 Pass iliMri t. Alaska, report , . 460

VM'I i. [...! t. ,i Mas I , Editorial, . . 4 69

Blrdi md n.t- • in mlnM 67

irck Mining Co., Platlron, BouUi Dakota

Bismuth ration, Thum prooeal

• i alia production

Boll* la production , ,. , 590

Pel u pi oductlon -,yn

1 production

onj production 590

Spain production 690

Wolfram, Queensland production 961

Bltumlnoui rock. California production

Black Jack Consolidation Mining Co., Silver City, Utah., 117
Black <»iik Development Co., Boulebyvllle, California mill

Olivet filters 558

Blacks tone, Richard, Homestake superintendent eyti

Ditto Editorial 544

Bla«'kWi>U'r If In ea, Ltd., South [aland, New Zealand ....144, 1004

■ 'otnpany report 466. 614

i 526

Black welder, Eliot.. Origin --r the Rookj M<*nntHin phos-
phate depoalta 987

Blair. J. I Weighing minute spheres of gold and

allver 526

Blast- furnaces, Melting out slag notches 994

Blasting by wholesale at W. von Bernewitz. . . 646

Blue Bell mine, Alaska :: 1 1

Blue Goose Mining Co., Oklahoma <_-

Bluestnn ■ nun.-. Nevada, and Mason Valley Copper Co 7"

Blust-*t niinc. Nevada 857

Blyth, W. B Tube-mill practice and the bard nee 8

of ores. ... 93

B. at ft B. Mining Co., Wisconsin. Blddlck mine 457

Board measure 924

Bolleau. John Wesley, death of »;:'l

Boiler tubing 22

Waste heat 300

Bolivia, bismuth production 590

• ductlon 120

Imports and exports 792

Incaoro Mines Co 796, 920

Ditto R. B. T. Killani 800

Mine ownership Editorial. . . .939

Mineral resources 794

Mining operations and war 920

Tin deposits Editorial 585. 791

Bonanza King mine. Trinity Center. California 734

Bonanza mine, Alaska 499

Bonnie Mining Co., New Mexico loos

Borax, California production 501. 567, 929

U. S. production 567

Borax Consolidated, Ltd., Peru and Arequipa borax fields

Editorial 125

n Must prevention process 49

Gold Mining Co.. Good Springs. Nevada, palladium.. 990

Platinum discovery 503, 576, 736

1'latinum-gold lode deposits Adolph Knopf.... 990

Boston Curb reopened 695

Boston Stock Exchange opened 1002

Boston & Montana Development Co., Montana. .459. 695, 823

Bottomless scraper 96 l

Boulder Creek Mining Co., Alaska and Dease Creek syndi-
cate 69

Boulders. Handling, at Andrada ..L. C. de la Marllere.... 761

Bournonite, occurrence in Park Cltv mines, Utah 463

Brad en Copper Co., La Junta. Chile 121, 154. 159, 190,

313, 465, 497. 530, 739. 1005

Ditto 509

Braden mine. Oregon 195

Bradley. P. W Mining and Metallurgical Society, San

Francisco section dinner to Editorial. . . . 787

Brakes, hoist 768

Brakpan Mines Co., Rand .-.. 112

Bratnober. Henry, death of 464

Brazil, diamond production 793

Imports and exports 792

Manganese 724

Mineral resources 793

Ouro Preto mine 846

St. John del Rey Mining Co., Ltd 765, 793

St. John del Rey Mining Co., Ltd., Morro Velho mine.. 192
St. John del Rey Mining Co., Morro Velho mine. Per-
sistence of ore at T. A. Rickard.... 985

Brl^k. California production 929

Illinois production 524

Briseis Tin & General Mining Co., Ltd., Tasmania, com-
pany report 236, 248

Cross-section of mine 275

Dredging 220, 693

Britannia mine. British Columbia, aerial tramway 886

British Columbia. Atlin minng district 611

Boundary and Kootenav districts 117, 273

Mine fatalities 233

Mineral production 346

I
Murti

■
■ 11. mint; dl

528

Brll ,| lltl

Brltlal

Oold production

■■'• rlok, C, T Rook 1.

■"*•«!, !::■■■::;.
" r " k, p„n !",!';,::!

Br °Compunj S ? Ul orf" V,t *"""" '

Browne. David 11 i malting ...,i >|.

Brunawlck I onaolldated Oold Mining ...

Buckhorn Mines Co., Beowawe, Nevada

Mill, Nevada ' 1T1

BiiekiiiK versus hacking nature ....'/.*. Bdl to

BucyruB Co., dipper dredges, Panama canal .

Dredge construction in Portuguese East Africa 1 77

oppi t mines, California, nth- suit. .

Hurra in Hump, Bui k. , Idaho

Buffalo Mines, Ltd., Cobalt ■ intarlo, n,

1, ,, ,, . 181, Si

Building ft placer mining dredge with electric power olani
„ .... '" Portugal H. <;. Peake

Bullfinch Proprietary. Ltd., South. -m CrOBS,

tralla

Bullion molds, silver capacity 340

Bullion Beck ft Champion Mining Co., Eureka Utah.. 117

Bullwaeker Copper Co., Montana

Closed 1

Bullyelioop Mining Co., California, claims jumped ....".!! 893

Bunker Hill & Sullivan Mining 6 1 1 i n k Co.. Kol-

logg, Idaho 30, 77. 23 1. 860, 884,

iccldents

Lessees 168

Malm process Editorial. . . 903

v. Stewart Mining Co ;;;:,

Bunker Hill Consolidated Mining Co., Amador Cltv. Cali-
fornia 71. 502

'•arrow tailing treatment Kiank Lawrance.,

Bunk.r Hill mine, South Dakota 655

Burchard, Ernest F Barlte deposit near W range 11,

Alaska , . . ::?1

Bureau of Labor Safety Editorial. . . .277, 860

It nre: 1 11 of Mines and Bureau of Labor Safety 121

And Department of Labor Editorial. ... 360

Artificial respiration 765

C\hiblt at the Exposition 145

Experimental mine. Pittsburgh, explosion test *77

New buildings of 591

Petroleum division Editorial. ... 1

Petroleum library Editorial .... 710

Radium Investigations, Denver Editorial .... II

Rescue stations, birds and mice 67

Safety work and Bureau of Labor Safety

Editorial 277, 360

Bureaus, government and representative soeietv jm-. -tings. I 9 1

Ditto Editorial 168

Burma Corporation, Ltd., company report 707

Burma ruby mines. India 20S

Burr. William A Efficiency of the burro.... :>L'l

Ditto How to make money though mining.... 591

Burro. Efficiency of the William A. Burr.... 521

Burro Mountain Copper Co., Tyrone, New Mexico 73?

Profit-sharing 533. 653

Burton, C. S Stabilization of the copper market.... 760

Bury Compressor Co., variable volume air-compressor . . .■ 124

Business and European war 228

And New York market 109. 1 90. 268

And politics Editorial 43

Outlook, U. S. and war Editorial 667

Butte and Lead — a contrast Editorial .... 318

Mines and European war 266

Mines unions 42 f

Butte-Alex Scott Copper Co., Butte, Montana 461

Butte & Superior Copper Co., Ltd., Butte, Montana. ... 19 t.
347, 458, 461, 530, 580, 659, 662, 701. 705, 851, 854.

898, 975, 97S

And Eutte-New York Copper Co., new claims 68

Apex rights suit 931

Company report 310, Sfi!

Taxes 331

v. BIni Orlu Mining Co 154, 194. 576. 867

v. Minerals Separation Editorial.... 11

Butte-Ballaklava Copper Co.. Butte, Montana 271, 461

Butte-Bullwacker Mining Co., Montana 701

Butte Central Mining and Milling Co. organized 458

Butte r 'reek Consolidated Dredging Co. and Leland Stan-
ford University 821. 973

Butte-Duluth Mining Co.. Butte. Montana 461. 576. 701

And Anaconda Copper Co 1005

And Hayden. Stone & Co 926, 969

Ditto Editorial 904. 949

Leaching plant 158

Butte-Milwaukee Copper Co. and Butte-New York Cop-
per Co 68

Butte Mine Workers Union Editorial.... 360

And Western Federation of Miners 189

Butte-New York Copper Co. and Butte-Milwaukee Cop-
per Co 68

Butters Salvador Mines Co.. Salvador. Central America...

648, 798. 952

MINING PRESS

Vol. 109

1 'a ge.

Consolidated, Duluth, Minnesota, organized

laslo Design of the Plymouth mill.. ..

in shafts

Ine, Joplln district production

inla, reorganized

Idaho 76, 270

dl Btrld

And Hawaii lumber

m work on mining claims

ii"> Ion

ictlon

.Titles, lyi3

i '■• mines consolidation

Aging ,

Ian relief work Editorial

ilon

Editorial

and for taxes In

dges, map

oductlon by countli

gold mining district

Hydraulic mining litigation C. s. Haley. .. .914,

Hydraullcklng Editorial. . . .

Industrial Accident Commission

i dial Accldsnl Commission and mine owners ....

Ditto Editorial 711,

industrial Accident Commission and Workmen's Com-

Editorial ....

Industrial Accident Commission, report in.

Jackson gold mining district

Julian district mines

Kennett district

Lead production by counties. 1919

amber of Mines and Oil bulletin

I'Hto Editorial

Macadam production

afasrni site deposits

Ditto Editorial. .

Magneslte production

Ifaryavllle gold-dredging lands Editorial. .. .

Mine operators association

Ditto Editorial

Mine Owners' Casualty Indemnity Exchange

Editorial

Mineral production 501,

'Min. i .i ' i lifornia'

Mining and war

Mining revival Editorial ....

Mono Lake basin placer ground

Mother Lode, metallurgical practice Editorial. . . .

Mother Lode, metallurgical practice and Plymouth mill
Moi i Ion, activity

Mother Lode region, map

Mi Laasen, Eruption of William H. Storms. . . ,

i nl and gas land legislation, Washington, D. C

Industry

Petroleum production 36. 193. 383. 699. 855,

Ditto Editorial. . . .

Platinum production

Portland cement production

Potash, Discovery of Whitman Symmes. . . .

Quarries

Quicksilver production

Rubble production

"Safety First' movement Editorial. . . .

Salines

San H-rnardlno County tungsten ores

San Fra.iclsco bay, Blasting by wholesale

M. W. von Berne witz ....

San Francisco firat-ald contest

OUnty mines

i ncient auriferous grav, I -

Silver production hy counties. 1913

Siskiyou County mines 574,

Soap urrence

Son ore district mines 29, 76, 618. 930,

Southern, .nap 151,

Southern Oregon and Northern California Mining
ress

Trinity county, map

Water in oil sands and Mining Bureau. .. .Editorial. .. .

Workmen's Compensation again Editorial ....

Workmen's Compensation and Mine Owners Casualty

Indemnity Exchange Editorial .... 1,

Workmen's Compensation Insurance fund

Workmen's Compensation Insurance rates tumble ....

Editorial

551ne production. 1913

California -Alaska Mining Co

California Motr.1 Producers Association

Ditto Editorial. .

Articles of Association

Directors Editorial. .

Call fern Is Portland Cement Co. suits settled

California State Mining Bureau oilfields, water damage..

Editorial

Calumet & Arizona Mining Co, Warren, Arizona 2S.

74, 121. 20$. 209. 313. 422. 572. S92.

Douglas smelter

New Cornells mine Ajo ores 209. 252, 291.

Calumet. Michigan 68.

121. 232. 266. 268. 310. 347. 350. 380. 382. 418.
420. 456. 576. 817. 873, 928. 934.

;'algn 268.

■ ■hint? plant

T^each'ns process •. Editorial. .

:ih nf service of miners

■S if< ■• v First'

ne claims 4is.

. Motor mine, Rhodesia 72. 336. 7G6

Cam for stamp-mills, improved Arthur B. Foote....

1 1 bearing? 154,

68
670
BIS
351
829
B22
460
924

647

349

719

349

■
943

930

820

911

161

i€
349
930
903
64 7

:.74

940
526

2"1
734
432

587

929
114
379

41
893
668
870
150
150
143
191
892
935
27 7
842

38
883
647
217
617
239
821
821

B 1 6
574
699
269

34a

S56

919

1007

821

157

1007

667

587

41
157

941
34 9
311
734
74 3
764
787
114

978
269
383

969

763
192
361
375
942
576

955

970
904

2::::

Page

rtbrldge University and Louvaln University

Editorial..!! 585

Camp Bird. Ltd.. Ouray, Colorado 231 822 931

Company report 42S, 689, 7^:

Finance conditions \&->

Mining costs [[ -■•?,

to, Calgary oil district ....31, 273. 345, 678

824

Uoei ry oil district and war 3$t»

Alberta, Calgary oil district discovery of black oil . . . . 6s

erta, Calgary oilfield, gasoline production 191

tning industry 573

Alberta, Edmonton oil discovery 896

Alberta, oil districts 660

« !opi 1 ion 12(>, 689

Copper Bmeltlng in

Iron mining and government bounty Editorial 585

I ion mining Industry 732

Klondike, Operations of Yukon Gold Co

E. E. Hurja 568

Manitoba, Rice Lake gold district 573

New Brunswick antimony 970

Nickel and war 772, 969

Editorial 904

.s'ickel industry ::;_•

Nova Scotia mineral occurrence 196

Petroleum production 935

Timber for mines 970

Weiiand canal 924

Yukon, Dawson district geology 771

Yukon Klondike district, map 770

Canada Iron Corporation reorganized L52

Canadian Coal & Coke Co 572

Canadian Capper Co., Ontario 689,

Nickel production Editorial. . . .

Canadian Copper Corporation. Ltd., and British Columbia

I topper Co

Canadian Gold Fields, Ltd., and Consolidated Mining &

Smelling Co 151

Canadian Goldfields Syndicate, liquidation 6S

Canadian Klondyke Gold Mining Co.. Ltd.. Yukon 31,

587, 738. 825. 896

Dredging 454

Operations of the Emit Edward Hurja.... 769

Canadian Mining & Finance Co 345. 573

Canal, Panama, power-plants 223

Cananea Consolidated Copper Co., S. A. Sonora. Mexico .. 121

Fire 233

Troubles 196

Cancer treatment, compressed air superheated 340

Candllsh milling process 420

C. A O. Mining Co., Pinos Altos. New Mexico 653

Cape Cod canal opened Editorial.... 2111

Cappeau furnace 205

Carbide lamps and explosives 135

Carels Freres. Belgium Editorial.... 431

Caril -Cobalt Mines Co.. Cobalt, Ontario 159, 580, S91

Carlsa Gold & Copper Mining Co.. Mammoth, Utah 117

Carnotlte, cost of mining and delivering 30

1*. S. production 649

Carr mine. Colorado, lessees' shipments 502

Casados silver-gold mine. Hostotipaquillo district, Jalisco,

Mexico, confiscated 71

Caeey Cobalt Mining Co., Ontario 159, 463

Catlln. W. Prince True fissure veins. . . . 566

Caving svstem of mining In Lake Superior iron mines....

J. Parke Channlng.. 451

Celestite 415

Texas occurrence 927

Cement. Bureau of Standards, Washington. D. C 220

lornia production 501. 929

Gun In mines 877

Michigan production 705

New Jersey production 705

Plant. Philippine Islands 1000

Plants dust-fall 22

Portland, Illinois production 524

Portland. Kansas production 705

Portland. Missouri production 664

Portland, Pennsylvania production 664

Queensland, and Gore limestone deposits 381

Texas production 466

U. S. Industry 566

Centennial Copper Mining Co., Calumet. Michigan 232. 928

Certennlal-Eureka Mining Co., Eureka. Utah 117. 503

Cs ve-ln 536

Center Star Mines. Rossland. British Columbia 346. 933

Central America. Salvador, gold and silver exports 648

Central American Mines. Ltd.. company report 707

Central Eureka Mining Co., Sutter Creek. California 734

Central mine, Broken Hill. New South Wales, pneumatic

rs 378

Central Zinc Co.. England 304

Century. Webb City. Missouri 1008

Cerro fle Pasco Mining Co., Cerro de Pasco, Peru 121

Cerro Gordo Mining Co.. Keeler. California 230. 930

Ceylon, mining 634

Plumbago 63 4, 844

Chaffers Gold Mining Co.. Ltd.. Kalgoorlie, Western Aus- '

tralla 498. 8S *

Chambers-Ferland Mining Co.. Ontario, and Aladdin Min-
ing Co

Champion Copper Co., Copper Range Consolidated. Patnes-

dale, Michigan 418. 424.

Comparative drill efficiencies

•*hnmri«n Beef Gold Mining Co.. Ltd.. India 265,

Chandler, H. A. E Mine taxation and the conference of

inx officials 838

Channeling machines 124

Channlng, J. Parke ....Caving system of mining in Lake

Superior iron mines 451

Ditto Design of the Plymouth mill.... S46

Cbapin, Milne. Grenfell & Co. failure 6S. 162

Chapman gas-producer 398

152
658

958

MINING PRESS

■ nr. l'l«|,

l.tlllll .

U> Junta'

.v Bl I

111, II

Edltoi

lU.Tlnl

i ioro. . .

Editorial. ',

— '.'. Editorial! !

lion

ii"; cporti

Ul'or crl»l« In

■ -hip ,

Mil

Nitrate export problem

v poits

auction Editorial

imp |9i

"'"" Kdllorlal

A Bolivia rallwnv

exploration Co Editorial

China, finances Editorial. . . .

Mongolia.

Klaocbow, mining near ...!!!

ol louthweatern

Mongolia map '.'.'.'..'.

Bsu-ohuan Petroleum, gas, and brine wella of '. . .

Thomas T. ami M. Carleton Read...,

ng * Mining Co

Chlneei mechanics, shanghai book A Engineering Co. ..

Chlno ■ Santa Rita, Mow Mexico ....68. 181 .Ms

313. 427. 458. 46:'. 533. 653. 694. 890. 898. 969.

Company report 872

Taxes .'

ChlorldUing roast. Rejuvenating the

F. s.. in ui. t Schmidt. . . .
Ohlorlnatlon applied to complex sulphide ores

Process. Titus

Chrlslensen chlorlnatlon process 25.

Cbrlaty, s B.. death of Editorial. . . .

Chromlte. California production

Chromium. U. S. production

ClnCO Minns. Mexico

Cinderella Deep mine. Hand, sand tilling

Cinnabar. Arizona, discovery

Cinnamon Blppo mine. West Africa 814.

City Deep, Ltd. Southern Wltwatersand. Transvaal

City of Cobalt Mining Co

Clack, Tin-., .v.. Portable assay outfit

Claim locations by employees

Olapp process Editorial

Classification methods, modern

Clay. California production 501.

son production

Products, Georgia production

Products. Kentucky production

Products, Missouri production

Products, New Jersey production

Products, Pennsylvania production

Products. Utah production

Products. Virginia production 333.

Products. Washington production

Cleveland-Cliffs Iron Co., Athens mine

Electric hoists in mines P. E. Stanford....

Lloyd mine. Michigan 576,

i 'l.v.-land Mining Co., Wisconsin

Clevenger, G. H.. Function of lead salts In cvanidati.m . . . .

Clltf Mining Co., Alaska

Cllft mine. Utah

Coahulla Lead & Zinc Co.. Webb City, Missouri

Coal. Alabama production

Alaska, area of lands

Alaska fields, map

Alaska lands, leasing Editorial. . . .

A!;, ska leasing bill 498. 571,

Alsace-Lorraine production

Anthracite culm

Anthracite, Pennsylvania, and electricity

Arkansas production 80,

Australia and New Zealand government mines

California production

Colorado production 135.

Dredging for Editorial ....

Dust firing Editorial....

Dutch East Indies production

Fields, England German Interests in

France production

Gas, cyanogen in

Gas. manufacture

Georgia production

Hungary imports and production

Ttlinois mines wash-houses

Illinois production 466.

India, production of British

Indiana production

Iowa production

Ireland production

Kansas production 80.

Kentucky production 248,

Maryland production ,

Mines. Electric power v. mules In

Mining and automatic machinery

Missouri production 38.

Montana production 176,

New Zealand production

North Dakota production

Nova Scotia mines and war

Ohio production

Oklahoma production

Oregon production

89.-.

SOU
101

303
191
911
795
911
87«

509

:••:
185

410

.'.:■:■

41'l
629

r:v

971

883
1009

321
26
808
195
865
92?
861
5X11
804
156
955
307
421
491

567
929
705
466
664
664
706
664
705
605
77
773
446
595
817
635
2 63
117
1008
634
308
342

615
451
768
651
664
693
929
705
625
830
328
925
184
847
693
466
212
886
524
17
38
80
552
705
664
236
728
529
664
705
919
80
970
66 1
181
705

i ml

..■.«..

.10. 333,

.15>, 537,

lion

I. in i

i ■ - mil

- 1 In. 'lion ..,

dui i ".n

vii Kim., | i oduotlon

hlngton production

I Virginia produotlon

lion

i Jobs it i int. i rlo pi .'.in ii

Cobalt Lake Mining ''" . Cobalt, i
I'.ih.iit Reduction Co., I intarlo .

Townslte Silver kilning Co., Ltd Ontario..

Code addresses and war.. editorial....

C O. l> mini

CokSi Alabama production 80.

irado production

miauls produotlon

Kentucky production

New Mexloo produotlon

Mew Zealand production

Pressure-sustaining

i*. B. production

Virginia production 333,

Colbii'n-AJax mine. Cripple Creek. Colorado 76, 231.

423, 575. 735,
Coleman mine, Utah

c.illlnan '.intact. Km. a. Geologlcn I reporl Within t]

mining concession D. P. Hlgglns. . . .

Collins. George E Harrlmans and mining....

Collins, W. F Revision of the mining law....

Colltnsvllle smelter of the Bartlesvllle Zinc Co

E. H. Leslie

Colombia, gold exports

Imports and exports

Map of

Mineral resources

Orovllle Dredging. Ltd 404. 621,

Or,. vllle Dredging, Ltd., Pato dredge 537. 738, 825,

Orovllle Dredging. Ltd., Pato dredge difficulties 621,

Prospecting on the Upper Magdalena. . .C. S. Haley ... .

Colombian Mining & Expl. Co., Ltd.. company report

Colorado, Breckenridge district

Rreckenrldge dredging companies

Oarnoilte ore shipment

Clear Creek and Gilpin county sulphides. Cyanldatlon . .

Jackson A. Pearre. .

Coal production

Coke production

Creede district mining

.'npple Creek district mines 75, 423, 461. 535. 575,

618, 658, 700, 735, 856, 894. 931. 974,

Cripple Creek mines. Granite and Vindicator suit

I-Vrberite deposits

Gilpin County mines

Hughesvllle district

Idaho Springs district mines

T.eadville district and war ii • v-V

Leadville district mines 23, 157. 194, 350, 535. 575,

658. 700, 734. 818, 856, 894,
Leadville ore deposits. Siderlte and sulphides In — I, II..

Phillip Argall ... .50.
Leadville ore deposits, Siderlte and sulphides In — a cor-
rection Phillip Argall

Metal production

Mineral production

Ouray county minerals • • ■ -

Ourav shipments s £-.

Petroleum production • .... • • ■ ■ ■ • • • ■ • -36.

Roosevelt drainage tunnel 194. 310. 384. 461. 658,

San Juan district, map

San Juan district mines • - - ■

Sllverton district mines 4".

Sllverton ore shipments .............

Smelting In Editorial

Tellurtde cloudburst ■

United Mine Workers of America trial

Zinc production

Colorado Fuel & Iron Co.. company report

New Mexico mines

Colorado Gold Dredging Co., Colorado ......... . ....

Colorado Gold Mining & Development Co., Colorado suit. .
Colorado Mining Co.. Silver City. Utah ............. 117,

Oolvin. Clarence K Revision of the mining law

Commerce. Department of, and Bureau of Labor Safety . .
U S Bureau of Domestic and Foreign .. .Editorial. . .

Commerce Mining & Royalty Co.. Oklahoma

Commercial Mines & Milling Co.. Nevada

Commonwealth gas producer

Commonwealth Mining & Milling Co.. Pearce. Arizona. ..

657, li^v.

.733.

««l

1«T

•0

l»s
• 34

705

eofi

977
169

709

384
631
112
80
107
1"!
919
108
567

931
1010

204
878
792
406
796
720
1010
652
404

37
157
856

833

135
142
424

1008
508

886
894
1007
699
420

974

128

148
231
705
931
931
935
777
424
11.".
461
658
941
194
911
251
777
775
720
735
858

mi;
421
239
928
31
155

Oliver niters

Commonwealth wood-gas generator

Company reports:

Alaska Gold Mines Co . . . . . ....

Amalgamated Zinc (De Bavay'sl Co.. Broken Hill.. 724.

American Smelting & Refining Co .497.

Associated Gold Mines of Western Australia, Ltd

Babllonla Gold Mines. Ltd

Balaklala Consolidated Copper Co

Barnes-King Development Co., Montana

Blsmark Mining Co.. Flatlron. South Dakota..........

r.lri'-kwnter Mines. Ltd.. South Island. New Zealand. .466,

Brine's Tin & General Mining Co.. Ltd 237.

Tt r nir«n Hill Proprietary Block 10 Co.. Ltd.. New South
w'nles

Broken Hill Proprietary Co., Ltd., New South Wales . .

975
555
381

657
1013

5S1

sir,

ViiT
581
310
663
fil I
2 IS

37
783

MINING PRESS

Vol. 109

Page.

oil da ted, F'uiuth. Minnesota, organized

Ign of the Plymouth mill. . . .

In shafts

oplln district production

ilifurnla, reorganized

270

district

And Hawaii lumber

ii work on mining claims

• II

notion

counties, 1913

» •••*■■■ 1 mines consolidation

lief work Editorial! .. '.

natural, production

Bdltorlal

laud for taxes in

' told dredges, map

oductlon by counties, 1 :t 1 3

1! y gold mining district

Uon C. S. Haley, .. .914,

Hydraullcklng Editorial

Industi lal Accident Commission

Industrial Commission and nun. owners ....

J 'H'" Editorial ;n.

Industrial Accident Co mm Workmen's

ates Kditorial ... .

Industrial Accident Commission, report 111

Jackson gold mining district

Julian district mines

Kennett district

Lead production bj counties, 1918

Angeles Chamber of Mines and Oil bulletin

I'Mto Editorial

Biacadn m production

Magnetite deposits

Ditto Editorial. .

ncsfte production

Haryavllle gold-dredging lands Editorial....

Mine operators association

Ditto Editorial

.Mine Owners' Casualty Indemnity Exchange

Editorial

Mineral production 501,

'Minerals • >{ < 'alifornia'

Mining and war

Mining revival Editorial ....

M< 'no Lake basin placer ground

Mother Lode, metallurgical practice Editorial. . . .

Mother Lode, metallurgical practice and Plymouth mill

Mother Lodi region, activity

Mother Lode region, map

Mt. Lassen, Eruption of William n stm-ms

1 mi and gas land legislation. Washington, D. C

Petroleum industry

Petroleum production 36. 193. 383. 699, 855,

Ditto Editorial

)'i-i tlnum production

Portl "t production

ilscovery of Whitman Symmes. . . .

Quarries

Quicksilver production

Rubl Ic production

'Safety First' movement Editorial. . . .

Salines.

Sau Bernardino County tungsten ores

Ban Francisco bay, Blasting by wholesale

M. W. von Bernewltz. . . .

San Francisco first-aid contest

Shasta County mines

Siena County ancient auriferous gravel channels

Silver production by counties. 1913

Siskiyou County mines 574,

Soap u rrence

Sonora district mines 29, 75. 618. 930.

Southern, .nap 1 ," l ,

Sdutl -'on and Northern California Mining

Trinity county, map

Waii i In oil sands and Mining Bureau . . . .Editorial. . . .

Workmen's I tompensatlon again Editorial. . . .

Workmen's Compensation and Mine Owners Casualty

Indemnity Exchange Editorial. . . .1,

Workmen's Compensation insurance fund

Workmen's Compensation insurance rates tumble

Editorial

Zinc production. 1913

California-Alaska Mining Co

California M*tal Producers Association

Ditto Editorial..

Articles of Association

Directors Editorial. .

California Portland Cement Co. suits settled

California State Mining Bureau oilfields, water damage..

Editorial

Arizona Mining Co , Warren. Arizona 28,

74. 121, 20S. 209. 313. 422. 572, S92.

Douglas smelter

Ww Cornells mine A io ores 209. 252. 291.

Calum< Mining Co.. Calumet Michigan 68.

Ill, 282, 266, 268, 810, 247. 350. 880, 382, 418,
420. 456. 576. 817. 873. 928, 934.

lency campaign

chins; plant

-s Editorial . .

I.t-neth of service of miners . . . . #

iv First'

Whit" Fine claims

("am \- Motor mine, Rhodesia 72. 336, 761

Cam i mills, Improved Arthur B. Foote. . . .

rings 164,

670

351
829

B22
460

567

647

349

719
903

■

349
350

930
820

941

350
151
350
349
930

647
574

940
526
201
734
4: 32

929

114

41
893

668
670
150

150
i i.:
191
892
935
277

t; 1 2

617
217
647
239

821

646
574

699
26S

349
856
919
1007
821

167

1007

41
157

941

349
341
734
743
764
787
114

903

269
383

969
763
192
361
375
942

959

1*70
904

Page.

Cambridge University and Louvaln University

Editorial 585

Camp Bird. Ltd., Ouray, Colorado 281, 822 931

■ ipany report l&g, 689, 782

Finance eruditions 162

Mining costs

■la. Alberta, Calgary oil district ....31, 273. 34".. 6*78,

660, 824

ajberta, Calgary oil district and war 386

Alberta, Calgary oil district discovery of black oil . . . . 68

Alberta. Calgary oilfield, gasoline production i*.»i

ining Industry

Alberta, Edmonton oil discovery 896

Alberta, oil districts " 660

• topper pr xRctlon 120, 689

Copper smelting In 689

mining and government bounty Kdltorlai

Iron mining industry 732

like. Operations of Yukon Gold Co

E. E. Hurja 668

Manitoba, Rice Lake gold district 573

New Brunswick antimony 970

kel and war 772. 969

Editorial 904

kel industry ;;:_•

Nova Scotia mineral occurrence 196

Petroleum pi oductlon

Timber for mines 970

Wt Hand canal 934

Yukon. Dawson district geology 771

Yukon. Klondike district, map 770

Canada Iron Corporation reorganized 152

Canadian Coal & Coke Co .".73

Canadian Capper Co., Ontario 689,

Xiekel production Editorial. . . .

Ifan Copper Corporation, Ltd., and British Columbia

Copper Co

Canadian Gold Fields, Ltd.. and Consolidated Mining &

Smelting Co 151

Canadian G-ddflelds Syndicate, liquidation 68

Canadian Klondyke Gold Mining Co.. Ltd., Yukon 31,

537, 738, 825. 896

1 1 red gin g 454

Operations of the Emil Edward Hurja.... 769

Canadian Mining & Finance Co 345, 573

Canal. Panama, power-plants 223

Cananea Consolidated Copper Co., S. A. Sonora, Mexico .. 121

Fire 233

Troubles 196

Cancer treatment, compressed air superheated 340

Car.dlish milling process 420

C. & O. Mining Co.. Pinos Altos, New Mexico 653

■ !od 'anal opened Editorial .... 201

< teppeau furnace 205

tamps and explosives 135

Carela Frerea. n.dglum Editorial 431

Caribou-Cobalt Mines Co.. Cobalt, Ontario 159, 580, 891

Carlsa Gold & Copper Mining Co., Mammoth, Utah 117

Carnotlte, coat of mining and delivering 30

U. S. production 649

Carr mine, Colorado, lessees' shipments 502

Casados silver-gold mine, Hostotlpaquillo district, Jalisco,

Mexico, confiscated 71

Casey Cobalt Mining Co., Ontario 159, 463

Catlin. W. Prince True fissure veins. . . . 566

Caving system of mining in Lake Superior iron mines.-..

J. Parke Channlng. . 461

Celestlte 415

Texas occurrence 927

Cement. Bureau of Standards, Washington, D. C 220

1 'alifornia production 501, 929

Gun in mines 877

Mi'-hlgan production 705

New jersey production 705

Ulant. Philippine Islands 1000

Plants dust-fall 22

Portland, Illinois production 524

1 '>.rt land. Kansas production 705

Portland. Missouri production . 664

Portland. Pennsylvania production 664

Queensland, and Gore limestone deposits 381

Texas production 466

U. S. industi v 566

Centennial Copper Mining Co., Calumet. Michigan ....232. 928

Certennial-Eureka Mining Co.. Eureka. Utah 117. 503

Cave-In 536

Center Star Mines. Rossland, British Columbia 346, 933

Central America, Salvador, gold and silver exports 64$

Central American Minns. Ltd.. company report 707

Central Eureka Mining Co., Sutter Creek. California .... 734
tral mine. Broken Hill. New South Wales, pneumatic

augers 378

Central Zinc Co.. England 304

Century, Webb City, Missouri 1008

Cerro de Pasco Mining Co.. Cerro de Pasco. Peru 121

Cerro Gordo Mining Co.. Keeler. California 230, 930

Ceylon, mining 634

Plumbago 634. S44

Chaffers Gold Mining Co.. Ltd., Kalgoorlie. Western Aus- ■

tralla 498. 854

Chambers-Ferland Mining Co.. Ontario, and Aladdin Min-
ing Co 152

Champion Copper Co., Copper Range Consolidated, Palnes-

dale. Michigan 418. 424. 65S

Comparative drill efficiencies 876

Champion Reef Gold Mining Co.. Ltd.. India 255. 95S

Chandler, IX. A. E Mine taxation and the conference of

tax officials BS8

Channeling machines 124

Channlng. J. Parke ....Caving system of mining in Lake

lor iron mines 451

Ditto Design of the Plymouth mill.... S46

Chapin. Milne. Grenfell & Co. failure 68. 162

ian gas-producer 398

Vol

MINING PRESS

- ft^ i

Chile i j. Junta ..ill, I u. i»6,V«V,

Editorial
Editorial

89.'.

. .Or.. . nine .

. . lluucroft Gore. .. .

.... . .. .Editorial!! ! ',

■ ... ... .Editorial!!

il.lle Copper Co

Dltti

I : ■ i|

Imports an,i exports

'..ibt.r crisis in

M.t

.Mli.

Nlttat. aXDOrl problem ...

Nitrate exports

Mi r. u>. production Bdltorlal. !

l:*.» 197

"I"" Bdltorlal

.v llollvlu rallwnv

Chile Exploration Co Editorial

China, finances Editorial. . . .

■ ;..i.i mining In Mongolia

Klaochow, mining near !!

Ifap ..t southwestern

Mongolia map !!

■ huan. Petroleum, gas. and brine wells of

Thomas T. ini.i M, Carleton Road....

glneerlng .v. Mining Co

Chinese mechanics, Shanghai book & Engineering Co. ..

Chlno Copper Co., BantaJtlta, New Mexico 68. LSI, 208,

313. 427. 158. 161'. 533. 653. 694. 890. 898, 969.

Company report 272,

Taxes

Chlorldlxing roast. Rejuvenating the

F. Sommer Schmidt. . . .
Chlorlnntion applied to complex sulphide ores

Process, Titus

v'hrlstensen clilorlnatlon process 1'.",,

Christy. S B.. death of Editorial

Chromit. . California production

Chromium. V. S. production

Clnco Mlnas, Mexico

H.i I p mine. Rand, sand tilling

cinnabar. Arizona, discovery

Cinnamon Blppo mine. West Africa 814.

'Itv Deep. Ltd., Southern Wltwatersand. Transvaal

City of Cobalt Mining Co

clack. The... A.. Portable assay outfit

Claim locations by employees

''lupp process Editorial. . . .

ii methods, modern

Clay. California production 601,

Oregon production

Products, Georgia production

Products. Kentucky production

Products. Missouri production

Products, New Jersey production

Products. Pennsylvania production

Products. Utah production

Products, Virginia production 333,

Products. Washington production

Cleveland-Cliffs Iron Co.. Athens mine

Electric hoists In mines P. E. Stanford....

Lloyd mine. Michigan 576,

i Heveland Mining Co., Wisconsin

Clevenger. G. H.. Function of lead salts in cyanidatlon. . . .

Cliff Mining Co., Alaska

Cllf t mine, Utah

Coahuila Lead & Zinc Co.. Webb City, Missouri

Coal. Alabama production

Alaska, area of lands

Alaska fields, map

Alaska lands, leasing Editorial. . . .

Alaska leasing bill 498, 571,

Alsace-Lorraine production

Anthracite culm '

Anthracite. Pennsylvania, and electricity

Arkansas production 80.

Australia and New Zealand government mines

California production

Colorado production 135,

Dredging for Editorial

Dust firing Editorial

Dutch East Indies production

Fields, England. German Interests In

France production

Gas, cyanogen In

Gas, manufacture

Georgia production

Hungary imports and production

Ttlinois mines wash-houses

Illinois production 466,

Tndia, production of British

Indiana production

Iowa production

Ireland production

Kansas production SO,

Kentucky production 248,

Maryland production .

Mines. Electric power v. mules in

Mining and automatic machinery

Missouri production 38.

Montana production 176.

New Zealand production

North Dakota production

Nova Scotia mines and war

Ohio production

Oklahoma production

Oregon production

SOS
110

363

939
795
981

168

1*6
110
160

410

629
918

7. "J

978

823
1009

324
26
80S
195
865
929
861
580
804
156
966
307
421
191
S.S6

567
929

705
466
664
664
705
664
705
605
77
773
446
595
817
635
263
117
1008
63)
308
342
277
615
451
768
651
664
693
929
705
625
830

925
184
847
693
466
212
886
524
17
38
80
552
705
664
236
728
529
664
705
919
80
970
664
181
705

!■:. rial

.117. 463.
.169. 537.

-in. 11.- it ...
i problem

U. S. minlr

production ....

I ' 8. « .i*te hoapi

I 'ti'h produotlon

Vn gtnla i i ...in. -tun

nigt.>n production

■ Virginia produotlon

■ I n A USl I nil. i [ I u. i ion

c. i. nit Ontario production

Coball Lake .Mining Co., Cobalt, Ontario .

letloi ntarlo

Sliver Mining ■'■. . Ltd

lea noil war.... I-:. lit ..rial ... .

■ ' 1 1. 1 1 ii. Colorado

mi production 80.

Colorado production

lllllll'l: [Mi Hi IK -til. It

Kentucky production

New Mexico production

Ww /.en land production

Pressure-sustaining

r. B. production ■

Virginia production 333,

Colburn-AJax mine, Cripple Creek, Colorado 75, 231,

423, 575. 736.

Coleman mine, Utali

Collbran contact. Korea. Geological report within the sh.ui

mining concession D. F. HlRglns....

Collins, George E Hnrrlmans and mining...

Collins, W. F Revision of the mining law....

Collinsvllle smelter of the Bartiesvllle Zinc Co

E. H. Leslie

Colombia, gold exports

Imports and exports

Map of

Mineral resources

Orovllle Dredging, Ltd 404. 621.

Orovllle Dredging. Ltd., Pato dredge 537, 738, 825,

Orovllle Dredging. Ltd., Pato dredge difficulties 621.

Prospecting on the Upper Magdalena .. .C. S. Haley ... .

Colombian Mining & Expl. Co.. Ltd.. company report

Colorado, Breckenridge district

Breckenridge dredging companies

Oarnoilte ore shipment

t'l.ar Creek and Gilpin county sulphides, Cyanidatlon..

Jackson A. Pearce. .

Coal production

Coke production

Creed* district mining

Cripple Creek district mines 75, 423, 461. 535, 575,

618, 658. 700, 735. 856. 894, 931. 974,

Cripple Creek mines, Granite and Vindicator suit

Ferberite deposits

Gilpin County mines

Hughesville district

Idaho Springs district mines

Leadville district and war ■ . . ■ ■■■ •

Leadvllle district mines 23. 157. 194, 350. 535. 575.

668, 700. 734. 818, 856, 894,

Leadvllle ore deposits. Slderite and sulphides in — I. II. .

Phillip Argall ... .50,

Leadvllle ore deposits. Siderite and sulphides In — a cor-
rection Phillip Argall

Metal production

Mineral production

Ouray county minerals ■ • ■ ■

Ourav shipments 82...

Petroleum production •.•:w"iii m V»V ' its'

Roosevelt drainage tunnel 194. 310. 384, 461, 658,

San Juan district, map

San Juan district mines ■ ■ ■ •

Sllverton district mines **■*'

Silvet'ton ore shipments iii.V V ,' " " "

Smelting In Editorial

Tellurlde cloudburst

United Mine Workers of America trial

Zinc production

Colorado Fuel & Iron Co.. company report

New Mexico mines Iii <

Colorado Gold Dredging Co.. Colorado ......... . ....

Colorado Gold Mining & Development Co., Colorado suit. .
Colorado Mining Co., Silver City. Utah .■■••/-.■■••,•■■• 117 '

Colvin Clarence K Revision of the mining law....

Commerce. Department of, and Bureau of Labor Safety. .

U S Bureau of Domestic and Foreign .. .Editorial .. .

Commerce Mining & Royalty Co., Oklahoma

Commercial Mines & Milling Co.. Nevada

Commonwealth gas producer ■ ■

Commonwealth Mining & Milling Co., Pearce. Arizona...

oat, 82U,

■•1 1
,,,,

IKS
■ I

38
706
006

977
169

70S

384

142
80
107
Ml
919
108
667
605

931
1010

204
878
792
406
796
720
1010
652
404

:i7
167
856

833
135
142
424

1008
50 2
886
894

1007
699
420

974

128

Oliver (liters

Commonwealth wood-gas generator

Company reports:

Alaska Gold Mines Co . ... . . ....

Amalgamated Zinc (Be Bavay's) Co., Broken Hill. .724,

American Smelting & Refining Co. ............... .497,

Associated Gold Mines of Western Australia, Ltd

Babllonia Gold Mines. Ltd

Balaklala Consolidated Copper Co

Barnes-King Development Co., Montana

Bismark Mining Co.. Flatiron. South Dakota ..... ....

Blaekwater Mines, Ltd.. South Island. New Zealand . .466,

Brise's Tin & General Mining Co.. Ltd 237.

-rtr"''"" Hill Proprietary Block 10 Co., Ltd., New South
Wales

Broken Hill Proprietary Co.. Ltd.. New South Wales . .

148
231
705
031
031
935
777
424
115
461
658
Oil
194
031
354
777
775
720
735
858
106
421
239
928
31
155

975
555
381

657
1013
581
315
707
5S1
310
668
611
248

37
783

-i.

MINING FRESS

Vol. 109

ten Hill South Silver Mining Co.. New South Wales.

Litd • • • •

Uutte * Superior Copper Co., Ltd.. Montana J10,

lorado 423. 689, 782,

I '.-mi ill AJ

Chief Con Ulnlng Co., Utah

io Copper Co., New Mexico

.mhian Mini ration Co., Ltd

6 Iron Co

Consolidated Gold Fields of New Zealand. Ltd

rnwall Tailings Co., Ltd

Crown Min.*, Ltd. Hand

Davla-Daly Copper Co., Montana

tor-Jack Pot Mining Co.. Colorado

i lome Mines Co., Ltd, Ontario

Dominion Steel Corporation. Ontario

English Crown Spelter Co., Ltd

Fi-st National Copper Co

eral Petroleum Co.. California

. ol.lfleld Consolidated Mines Co.. Nevada

Goldri<-i<i Merger Mines Co., .Wvada

inby Consolidated Mining. Smelting & Powi

British Columbia 815,

Granville Mining Co., Ltd

,t Boulder Perseverance. Western Australia

Great Boulder Proprietary Gold Mlnea, Ltd

Croat King. ill Consolidated, Ltd.. Western Australia ..

Hampden Cloncurry Copper Mines, Ltd

Hudson Bay Mines Co., Ontario

Inspiration Consolidated Copper Co

Internationa] Nickel Co

Jerry Johnson Gold Mining Co., Colorado

Page.
581

861
889

37
777
466
1013
163
535
310
660
858
236
581
707
778
736

Jim Butler Tonopah Mining Co.

Jumbo Extension Mining Co., Goldilehl. Nevada.

Kerr Lake Mining Co.

Kvshtini Corporation. Ltd.. Siberia

Lake View Ac Oroya Exploration. Ltd

Lake View &: Star. Ltd.. Western Australia

Lueky Tlger-Comblnatlon Gold Mining Co

Mascot Copper Co., Dos Cabezoa, Arizona

Miami Coppei Co., Arizona

Montana Power Co., Montana

,i i.v.ii Mining A Railway Co., Ltd

Mount Morgan < loll Mining Co., Ltd., Australia

Nevada Consolidated Copper Co 271,

Nevada Wonder Mining Co

New York A Honduras Rosario Mining Co., Honduras..

North Broken Hill. Ltd.. New South Wales

North Butte Mining Co., Montana 232,

Old i I ".. Michigan

( >ri ntal I Mining Co., Korea

Oroya Links. Ltd.. Western Australia 81,

Orsic Goldnelds, Ltd., Russia

o Preto Gold Mlnea, Ltd.. Brazil

Progress Mines of New Zealand. Ltd 466.

Queen of tin- Hills mine, Meekatharra, Western Aus-
tralia

Hand Mines. Ltd

Ray Consolidated Copper Co.. Arizona 269,

Robinson Gold Mining Co., Ltd.. Rand

Roolberg Minerals Development Co.. Ltd., Transvaal..

St i . Lid.. Brazil

Santa Qertrudls Co., Lid., Mexico 426. 782.

i Co.. Arizona 269, '.' < '■'.

Silver King Coalition Mines Co.. Utah

sis- mines, Urals

Snowstorm Mining Co.. Idaho

nlng Co., Utah

Stewart Mining Co., Idaho

Straits Trailing Co

Superior & Boston Copper Co., Arizona

TItantIr Qold Mining Co

Tomboy Gold Mines Co., Ltd

Tonopah Merger Mining Co

I Mining Co

Utah Copper Co 272,

Vulcan lb-tinning Co

Walhl Gold Mining Co., Ltd., New Zealand

Walhl Grand .lunetion Gold Co.. Ltd.. New Zealand...
Walhi-Paeroa Gold Extraction Co., Ltd., New Zealand..

Wealth of Nations, New Zealand

Kootenay Power & Light Co.. British Columbia ..

Wolverine Copper Co., Michigan

Yuanrnl Gold Mines, Ltd., Western Australia ...

Zinc Corporation, Ltd., New South Wales 315.

Comparative drill efficiencies

Compensation, workmen's — See Workmen's compensation.

Compressed air. superheated and cancer treatment

Compressor for Vindicator company

Concentrati treatment costs at the Tread well cvanlde plant

W. P. Lass. . . .

Concentration by flotation Editorial....

Wet. zinc recovery

Concentrator. Pan motion

Slime. Anaconda

Concerning copper quotations Editorial....

Concrete. California production

Head-frame C. T. Jackson....

Wet and te it conveyors

Congress and American Institute of Mining Engineers....

Editorial. . . .
Congress Consolidated Mining Co., California, Incorporated

Conlagaa Mines. Ltd.. Cobalt, Ontario 159. 660.

Connecticut, mineral production

Connecticut Zinc Corporation Incorporated

Connor, f I. Kalgoorlle geologv. . . .

, Mining Co.. Montana. No. 3 dredge accident

Consolidated California-Nevada Co

Consolidated Chlorlnatlon Works. Georgia

Consolidated Coppermlnes Co.. Klv, Nevada

Consolidated Gold Fields of New Zealand, Ltd.. South

Island. New Zealand, company report

ConsoU i Fields of South Africa acid mine water.

Tronn Corporation. California, and potash production ..

Consolidated Langlaagte Mines. Ltd.. Rand

Consolidated Mines of New Zealand

707

614

236

163

660

:,ii3

:;in

572
.'-'4
706
706
SI
861
534

314
732
901
581

976

663

614

19!
614

706
307
820

:;:
iimi

1006
159
224
236

1010
350
:•::.
973
267
706
706
273
779
826
163
275
782
614
933
271

7H7
876

340

960
586
310
468
238
509
647
99
84

169
230
702
705
27
493

927
954
121

466

Hon

974
112
114

■ i Mining 4i Smelting Co. of Canada, Ltd.. Trail.

lumbla 346. 426. 6S9. 1010

lid.it. ,l Mining & Smelting Co. and Canadian Gobi

Fields, Ltd 161

■il Co., California

i, late, i Power & Light Co 22::

: Virginia Mining Co., Nevada 659, B95

Continuous decantatlon at the Porcupine Crown Mines....

Maurice Summerhayes. . . . 88
tatlon. New Reliance mill practice with particular

reference to Jesse Simmons. . . . 722

Contraband of war :'-' I

rters, basi-:-lined

Copper, Alaska production 820

And bismuth separation, Thum process

And German market Editorial .... 509

Arizona production 7 1

Ann Hirseh & Sohn's annual report 120

Kornla production 349,501. 929

da production 689

Colorado production 231

Depo- idary enrichment laboratory study

Editorial 433

Eastern states production 88

Export problem and England ....530. 615, 731. 772. ^27.

926. 969. 1012

liitto Editorial 543.829. 939

Exports 691. S27. ^'.t

Ditto Editorial 830

German Southwest Africa exports 299

i :, t many, supply and war Editorial. . . . 981

Idaho oroductlon 231

.lusperold, Nevada. Ely district 1001

Lake Superior district industry 380

Market and war 347. 572

Ditto Editorial 939

Market, conditions of 420

Market Improved : 969

Market situation 926

Market. Stabilization of the C. S. Burton.... 7fio

Ditto L. Vogelstein 845

Michigan occurrence 768

Michigan production 705, 768, 816

Mines. Lak, Superior district and European war 531

Mines. Efficiency In Michigan 168

Mining. Lake Superior, present and future — I

Thomas T. Read.... S7l

Montana production 30, 705, 768

Nevada production 425

New Mexico production 76

New Zealand production 919

Ontario production 117. 195, (63, 868

i ires. Secondary sulphide enrichment of, with special

reference to mlscroscoplc study. Austin F. Rogers 680

Peru exports Editorial ...

Peru production 7:o

- 34. SO, 120. 161. 197.

19S. 236, 271. 313. 353. 387. 388. -I .

622. 662, 704, 739. Tin. 781. 826. 860. 898. 899. 934, 978, 1012

Prices, Future of Editorial.... 203

Production, monthly 121

Queensland production 961

'."notations. Concerning Editorial ... .509. 788

tlve natural and commercial scarcity of the metals

Edwin C. Eckel 182

Silver alloy 188

Smelting In Canada 6S9

Stocks surplus 662

Surplus 70 1

Texas production 819

1". S. mines and export trade 154

t\ s. mining and war 382

TJ. S. production 120. 861. 924

Utah production 705

Washington production 77

Western Australia production 381

World production 120

Wyoming production 117

i Giant mine. Arizona, and United Verde Copper Co.. 534

Ha ml bonk' publication 890

King mine. Arizona 71

King Mining & Smelting Co.. Idaho 1 r, s

Copper King, Utah 578

Copper Producers' Association monthly statements 1002

loos
269
454
617
501

92S

Report
Copper Queen Consolidated Mining Co.. Blsbee. Arizona..

121. 313. : ; I 865

Douglas smelter

Hoists

Safety

Smelter

Opper Range Consolidated Mining Co.. Painesdale. Michi-
gan 68. 121. 232. 26S. 418. 576. 894,

Copper Co.. Ltd.. Cordoba. Seville. Spain 121

Corinthian North Gold Mines. Ltd.. Western Australia .... 697

Cornfield Mining Co.. Miami. Oklahoma 774. 92S

Cornish tin mines and war 419

Cornwall Tailings Co., Ltd.. company report 1013

Cortex Mining & Reduction Co., Nevada 975

Costa Rica. Abangarez Gold Fields Co 77. 70S

Imports and exports

Mineral resources r9fj

Costs:

Alaska Juneau Gold Mining Co.

Alaska Tread we II Gold Mining Co 15 2.

Alaska Treadwell cvanlde plant, concentrate treatment

"W. P. Lass. . . .
Anaconda Copper Mining Co Editorial

1.-."

960

203

Arizona Copper Co. smelter L':':

Associated Gold Mines of Western Australia. Ltd 315

Wsmarrk Mining Co.. South Dakota 663

Blackwater Mines, Ltd.. New Zealand 13 ' t

P.rlseis Tin & General Mining Co.. Ltd 237. 2411

Rroken Hill Proprietary Block 10 Co.. Ltd 37

Broken Hill South Silver Mining Co 5K1

Butte & Superior Copper Co.. Ltd 310. Sfii

Ionia Mining Co., Tdaho

V.. I 109

MINING I'KI -s.s

Di in rep

IliK"

I.ll

mill

..1(3.

-U

Hull

Ku-t Africa

I . • \x .

J. F. U.TtlllllK. .

1:1 Tlgre Mining Co.. Bonoi

Gm maktni ind

■ hum -di tiling

Ildaled MiiiImk ''•' Jl.

■•I. 857,
iii.iiit.v Consolidated Mining. Smelting .v Powei ■

Great Boulder P e. Western Australia

il Boulder Proprietary Qold Mines, Ltd., \^

\ us! rail tt

t Flngmll Consolidated, Ltd.. Western Australia, nil.

Hammer-mill operation. Republic, Washington

Holllnger Qold Mines, Ltd., Porcupine' Ill, si),

inn Hutler Tonopali Mining Co

Jumbo Extension Mining Co., Goldfleld, Nevada. .. .110,

Lake Superior district strike, rnllltla

Lake View .v star. Ltd., Western Australia, grinding

l.in Editorial. . . .

Star mine, Yukon

Lonels Reel Gold Mining Co.. Ltd.. food

Lower Burma, mining

Lucky TIffar-Comblnatlon Qold Mining Co

Manganese production, Brazil

Miami Copper Co

Ditto Editorial

Montana Tonopah Mines Co., Nevada

■fount Lyell Mining & Railway Co.. Ltd

Mount Morgan Gold Mining Co.. Ltd 314.

Nclll Jig

Nevada Consolidated Copper Co Editorial....

Nevada Hills Mining Co

N--\ .i.l:. Wonder Mining Co

New Moddcrfonteln Gold Mining Co.. Ltd.. Rand

New York & Honduras Rosarto Mining Co., Ilmuluras ..

North Star Mines Co., Grass Valley, California 544.

Operating, at mines near Reefton. New Zealand

Oriental ConsolUlut. ,1 Mining Co., Korea

Oroya Black Rangfe Western Australia

Oroya Links. Ltd.. Kalgoorlle. "Western Australia ....81,

142,
Plymouth Consolidated Gold Mines, Ltd., California...

Porcupine Crown Mines Co.. Ltd 9L

Progress Mines. Ltd.. New Zealand

Rap, I Mines. Ltd 113,

Ray Consolidated Copper Co

Rock Island Coal Mining Co.. Oklahoma

Rooiberg Minerals Development Co.. Ltd.. Transvaal...

Safety 1- lrst. Lake Superior district. Iron mines

St. John del Rey Mining Co., Ltd

Sand tilling on Rand

San Poll mill. Republic, Washington

Santa Gertrudls Co., Ltd

Shamva Mines. Ltd., Rhodesia

Shannon Copper Co., Arizona 973

Sliver King Coalition Mines Co., Utah .'

silver King mine. Yukon

Simmer & Jack Proprietary, Transvaal

Sintering ore processes

Smelting silver-lead ores, and prices... L. S. Austin...!

Sons of Gwalla, Ltd.. "Western Australia

Steam stamping in gold mines

Tanganyika copper mines

Transvaal 552,

Tube-mill relinlng

Utah Copper Co

Ditto Editorial

\ an Ryn Deep. Rand

Walhl Gold Mining Co.. Ltd., New Zealand

Walhi Grand Junction. Ltd.. New Zealand 212

\\ ealth of Nations. New Zealand

Workmen's compensation Insurance in California

_ , „ . Editorial

Yuanml Gold Mines, Ltd

Yukon Gold Co

Cottrell fume apparatus, Selby Smelting & Lead Co

Crackerjack claims. Ketchikan district, Alaska

Craigglemore mine. Western Australia

Crank-shaft. Thermit weld of broken

Crawhal] mine. Fields M. & M. Co.. Wisconsin

Crawl girders in a battery-house

Cresson Consolidated Gold Mining & Milling Co., Colorado.

1ST,

Accidents

Creston-Colorado mine. Mexico. Mines Company of America
Cripple Creek Cyanide Milling & Mining Co., Colorado 658,
Cro'asdale, Stuart . . . .Leaching experiments on Ajo ores, I,

II. III.. . .209. 252,
Croesus Gold Mining & Milling Co., Alleghany. California. .

Crown mine. New Zealand

Crown Mines, Ltd.. Rand

Company report

Crown Point, Idaho

Crown Point-Eelcher, Nevada, fire 659,

Crown Reserve Mining Co., Ltd.. Cobalt. Ontario ..159, 386.
421, 458. 572. 622, 702. 819, 854, 891.

Crude methods of disposing of cyanide slag

Arthur Feust. . . .
Cuba, imports and exports

345

•

180

1 II

l.. i

1008
614

854

tea

118

195

11.'.
,:i a

ISO

81
71" I
534
203
s:::

II
340
S4 I

201

30
901
96]
581
551
526
663
995

614

878

92
614

307
8211
76S
782
60S
37

Mil
437
782
919
1006
159
537
901
378
170
972
514
487
910
255
779
203
112
163
260
614

42
995
568
949

12
155
594
457
729

974
735
419
856

291
269

1003
228
163
350

1009

1004

142
798

Practice

Practice,
Pracl ice,

i dltoi ,
Culllnan, K i
Cumin
Cunningham, Noel Milling in oyanldf

■
Cushlni ' ' ■• 1 1

Milium A- • ■ hi, Dakota

Cyanltlatlon at Shatter, Ten

Kunctl >t lead salts In . ' - II Cli

> "t i -ii.i Gilpin County sulphides

Solution « ml In \ w Allen

I iltto B. M Hamilton

SlUlphO-l vanl.l.s ill Hal al I:

Titration results In A. YV All

i lla, tailing

Cyanlae ami cyanlte

Bullion, iu ittls

Bullion, matte ..II li>|>

Bullli a. in.' it-- i emoval

•' in s. r. s an. i editorial..

uniptlon forecasts

Determination

Germany, ami beet sugar residue

Methods "f inumifaeture I I

Milling In A. W. All. |

i dito Noel Cunnlnghaj

Now available from Germany BdltOI -''II

Philippine Islands

' til fluxes I 1 r.

Practice, graphite In ores 60S

Practice low bas.--in.-tai content bullion

Practlci Methods of taking mill-head samples........

Lloyd Robey

Meyer A Charlton mine. Rand

DO! OUS mineral medium

Retnohl 'rapid eyanidlng apparatus'

silver and gold solvent

Practice, Uwarra mill Andrew Walz.. . . !'-l

Practice v. ilotntlon Editorial. 168

Price 118, 7M

situation Ml, 662, mil. B26, 820

Slag. Crude method of disposing of Arthur ETeuSt. . . 142

Supply Editorial. . . .381, 626

I". S. condition

Ditto Editorial..

I ". s supply 27 1

Cvanldlng tailing in the Willow Creek district. Alaska....

J. T. Terry. Jr 989

• Titration results and solution control in

Harai R. Layng. . . . 606

Cyanlte and cyanide 815

Cyanogen. In coal gas s I 7

Czar mine. Bisbee, Arizona, top slicing 151

Dakota Continental Copper Co.. work suspended 228

Daly-Judge Mining Co., Park Cltv, Utah 26, 77. 340.

351. 463. 504. 577, 779, S24, 10111

Daly Mining Co.. Utah nil"

Dalv West Mining Co., Park City. Utah.. 310, 370. 463, 824, HUH

New mill 17ii

Dan Creek Mining Co., Alaska 226

Darling Mining Co.. Texas 1010

Darlington. Thomas Menace of mosquitoes and what

to do about it 334

Darrow tailing treatment at Bunker Hill

Frank Lawrance.... 918
Davenport-Independent Mining & Leasing Co., Douglas.

Arizona 38S

Davis-Daly Copper Co., Montana 2::.'. 823

Company report 535

Davis lease, E. L., Tlntic, Utah 117

Day-Bristol Mining Co.. Ploche. Nevada 484

Day Dawn P. C. Gold Mines. Ltd.. Queensland, Australia. . . 25
Deadwood Business Club, South Dakota, Heidelberg
property — See Heidelberg.

Deadwood Standard mine. South Dakota 852

Dease Creek syndicate and Boulder Creek Mining Co..

Alaska 69

Deatli rate. Rand and Panama canal Editorial.... 168

Decisions, mining 39, 123. 164. 313, 428. 507, 623.

784, S62. 936

Deebook Dredging, Ltd 16

Deister Machine Co., double-deck sand table 1014

New products 40

Deitrlek Concession, Nicaragua, cancelled . . . .Editorial. . . . 982

de la Marliere, L. C Handling boulders at Andrada ... . 761

Del Mar. Algernon ... .Steam stamps from the gold miner's

point of view 513, 963

Dennl3, Clifford J., and flotation on quicks'lver ores

Editorial 5S5

Denver Engineering Works. Richards pulsator riffle 316

Denver Fire Clay Co., laboratory roaster 786

Low pressure oil forge 584

Deposition. Ore, in and near intrusive rocks by meteoric

waters Andrew C. Lawson .... 600

Design of the Plymouth mill Gelasio Caetanl. . . . 670

Ditto J. Parke Channlng, J. H. Lewis. ... 846

Detinning, England, industry 653

Detroit Copper Mining Co., Morenci, Arizona ....121, 313,

::ix. 855

Developing foreign trade Editorial. . . . 278

Development o'f gold mining in the Philippines

C. M. Eye 2S7

Developments of the Alaska Gold Mines Co

E. E. Hurja 103

Dewey, Frederic P Platinum assay. ... 20

Dexter mine. Cripple Creek. Colorado 75

Dexter White Caps Mining Co., Nevada 737

Diamond, Brazil production 793

British Guiana production 650

German Southwest Africa exports 298

Ill

MINING PRESS

Vol. 109

Page.

Diamond. Origin of ■• *»»

Producers conference and output Editorial.... 167

South Africa mining 113, 952

Union of South Africa Industry Editorial S»I

ond-drllllng, Alp, Arizona, test* 4io

Dlamon k Butte Reorganized Mining Co., Nevada bl9

Dlamondfleld Mining & Mlllng Co., Nevada 78

Diaphragm 223

• ngln.. hiillt In America. Largest 66b

Engine, cost of operation 815

DlfTusi lepOBltS Andrew C. l.a»'S"li.... 20

Dlngman well, Calgary. Alljerta. Canada 191, 273

• '0»

California potash Whitman Symmcs. .. . 883

I Valuation of dredging ground. .. . 962

... Joseph, boiler graphite 902

.lack Pol Mining Co., Cripple creek. Colorado .... 822

ipany report 310

Alaska Editorial 239

Dolbear Samuel H. . Potash and the Geological Survey. . . . 883

Dolcoath tin mine, Cornwall 682

Lake .Mining* Milling Co.. Ontario 428, 660, 7:>3. 738

Dome Mines. Ltd., Porcupine, Ontario ...117. 169, 818, 199.

898, 703. 733. So4. 858, 891. 1004. 1010

Mill treatment results 19

Dome Mining & Reduction Co.. Bullion, Nevada 736

Dominion Coal Co.. Canada 971

Dominion Steel corporation, Ontario 68, 121

Company report B68

Double-deck Deleter tallies mi i

olldated Mining Co., silver City, Utah 117

Draper, i» Rand banket, ESorwood replies to

discussion .... 376

Dredge. American, for foreign countries ....Editorial.... 432

And wlnchman'a skill 108

Construction In Portuguese East Africa

Charles Janin 177

anal 300

Placer mining. Building with electric nower plant In

Portugal H. G. Peake

and drill tests Editorial.... 829

Toronto, Ontario, harbor sand 300

Dredging and hydraullcklng In Victoria 923

Editorial.... 826

in of Jigs to lames w, Mel 11. ... 839

Ditto Editorial. . . . 903

Bold, Philippine [stands 670

Examination of Thomas A. Craves.... 991

I : round. Valuation of James T. Dixon. .. .

Ditto II. x. Herrlek.... 692

• C. s. rJerzlg.... 662

Ditto u J. H.ihl 403

Ditto R. c. Jennings... B27

Donald Bteel.... 846

Ditto E. Bryant Thornhlll... 186

Klondike district (64

Ot gold In Charles Janin.... 717

ovary v. drilling Editorial... . 7m

Russia :i7i

Victoria, Australia 220. 529

Vukon Gold ''■■ r.r.s

Drill efficiencies, Comparative S7fi

Leyner gg«

New .;:' i

Ir cost. LOW, on the Gogebic range

.1. F. Berteling. . . . 599

Rigs, Autotractlon St 3"R

Sullivan -ni'-.'i.r rotator 937

lirllllng contests Editorial... 85

ilishee. Arizona 114

Contests, Cripple Creek. Colorado 115

Contests, Ely, Nevada lir,

i da 1 1 r,

sis. Sonora, California 114

Idaho 115

Machine, efficiency Thomas M. Bains. Jr.'..

■ ami dredge recovery Editorial.... 829

v, dred Editorial . . 710

Ditto Charles Janin.... 717

Driving the Roosac tunnel and the lesson it taughl

p B McDonald 559

Drumlummon mine. Montana 894

Drummnnd Fraction p^ine. Cobalt, Ontario 121. 499

old mine. California 574

. William Lofland. death of 661

- Zinc A- Lead Co.. Missouri 576

il < '. Esl in ore 412

i t he Aahio apan 13

Rand 49

i Indies coal production 328

i :,,].! I, reduction

Petroleum production 93n

Tin production 328

Guiana, quartz mining In 810

■ Sweeney Mining Co., California 893

•Heberleln sintering processes 378

i ' S. Imports 567

iiv and war Pdltorlal. . . . 513

V. S i Editorial.... 543

ITnlversal Concentrator Mi- lire 463

is fuel 886

olldaated, Korea 729

e Bell Mining Co., Bingham Utah . , H7. 159.
385. 620, 660, 77!

i ni Co, Mexli o, fire. . 1 "" 1

Baltic \rthur S 'Minerals of California' ... . 114

^periment lames A. Fleming.... 148

.us. Rand 149. 964

Copper Mining Co.. Butte, Montana ...121, 208.

266. 461, lOl

And North Butte 1002

Ei Helena, Montana, lead smelter 4i>4

East Rand Proprietary Mines 72

Sand Ulllng J" 4

East Tlntic Development mine, Utah 11"

Eastern Oregon Light & Power Co. v. Highland Gold

Mines Co 73 '

Eastern Star Mining Co.. Nevada 861, 50.1

Echo Gold Mining Co.. South Dakota 8o3

Eckel Edwin C Relative natural and commercial

iv of the metals 182

Economical sliming In grinding pans.M. G. F. Sohnleln 692

Ecuador, Import*, and exports i9L

Mineral resources '»»

Bdeleanu. petroleum refining process 964

Eden Mining Co. In Nicaragua • "32

Edna May mine. Westonla. Western Australia 24. 381. ^

Efficiency engineering Editorial 625

In Michigan copper mines ;.v,,Y, : ■ y l?>.

Of the burro William A. Burr 521

Egypt, phosphate deposits Editorial 431

S6 Mining Co.. New Mexico • • ■ 100»

Eldorado Banket Gold Mining Co.. Ltd.. Rhodesia . .i2. 265. 9o9

Eleanor Mining Co.. Inc.. California 9,4

Electric hoist. First motion ■ • • • • ■ ■ • ■ • • • ■ • • • ■ ■ -]90

Hoists In the Cleveland-Cliff mines.. F. E. Stanford... 41b

Incandescent lamps in gaseous mines ............... 63J

Lighting, half-watt nltro lamps Editorial.... 86

Power at Homestake Jesse Simmons 3,4

Power. Germany '°|

Power v. mules in coal mines ' £5

Shock, artificial respiration '»;

Shock, first-aid , ,dl

Smelting of Iron ore. Fluorspar In ............ ..

Robert M. Keeney. . . . 836

Winch, new : i!;

73
626

Work In Australia

Electrical precipitation. Progress of Editorial

Electricity, Pennsylvania anthracite coal mines 6ol

El Favor Mining Co.. Jalisco. Mexico 69a

Employees killed ' ^

Eliminating the mosquito

Elkton Consolidated Mining & Milling Co.. C r , , P nl, *. r, ''; , : , 5' „,,

Colorado I 5 "- 35<) . 5S4 . ».il

Ellamar Mining Co.. Alaska ••• J«J

Elm Orlu Mining Co., Butte, Montana ....... .110. 461

v. Butte & Sttpperlor i. 5 , 4 ,',„ 1J ,'', " ' - , 1

Ores, Flotation of Editorial.... 644

Elmore copper plant. Sulltjelma. Norway ';--

El Oro Dredging Co.. Oroville. California 1006

El Oro Mining & Milling Co.. Elkton. Colorado 618, 668

El Oro Mining &- Railway Co.. Mexico '"I 580, 178

El Paso Consolidated Gold Mining Co.. Victor, Colorado.... ._.

El Ravo mine. Mexico. Mines Company of America 419

EI Tlgre Mining Co.. Sonora, Mexico, mill operations 212

Civ Valley Mlnlns & Milling Co., Nevada 486

Empire Copper Co.. Idaho • ■■■■ ■■ ■■■■ •••• ■ • -J J

Empire Mines & Investment Co.. Grass Valley. California.. 821

Mill. Oliver inters ^'";,""j ~«-

Bmplre-Nevada copper Mining & Smelting Co.. Nevada .. 885

Empire Zinc Co.. New M. xlco 533. ■,.-.. 819. 890

Ennmcls. antimony in manufacture VfiilVnVlii 9S2

End or the year ',:;•"■' Editorial.... B»z

Engels Copper Mining Co., California ;■'.;'■

^Engineering and Mining Journal' and Mining an, Kn-

glneering Wii.i. r opper quotations Editorial 509

Engineering Congress. San Francisco. ^P^™, 1 ;;^.,, '' -V- 7s7

Engineering, efflci- n. IWnV '''"'"'

England and copper export situation ........6811, 616, 781, ^

Ditto Editorial... ".648! 829! 989

Bank of. gold reserves Editorial 748

Coalfield. German Interests in i'-J

Cornish tin mining and war »^-

Detlnnlng industry »•>;>

Iron, galvanized, manufacture "»

Kent coal areas -.-;'

rordshlre pottery plants, lead poisoning ;■-■

Zinc smelting • °"j

English crown spelter Co., Ltd., company report -■!<>

Enrichment, secondary. Laboratory study <»,•■,■••_ ■ y r 64!)

Ernestine Mining Co., New Mexico. .„ ... ... ■■•J*' s! '°. I* 32 .

Eruption nl Mount Lassen William 1-1. Storms.... 148

Roberts., death of ■ • . . • ■ ■ ;-;;

Estimating arsenic in ores Basil G. Dunstan .... 412

:, Hill Mining Co.. Eureka. I'tah ..117, 895

rials Editorial 202

War --S, ■' \\ ir. -„-

Evans, James Porter, death of JO"

Evening star No. 5 mine. L.adville. Colorado explosion .. 3nU

Evergreen Consolidated and Dewey claims. Idaho ... 30

Inatlon of pi nd Thomas A. Graves 99i

Experimental .1. velopmcnt of the Hall process ......

Jam.s Y\ Neill .... '.»-■•

Ditto H. F. Wlerum.... 518

Exploration hill in House ■ °JU

Exploration Co.. Ltd.. London, in Mexico 504

Expli sii.n test at the experimental mine

George S. Rice. L. M. Jones. ... 877

Explosions, grain mills, t" S ;|qc

Explosives, Australasia imports ^6

Carbide lamp and J*;?

'Don'ts' in handling '»»

Dynamite cases as fuel ;|J

Fulminate for caps and quicksilver [JJ

, liandllng and use of 441

Gun-cotton ir°

Manufactured In V. s. in mis 679

Eye C M .Development of gold milling in the Philippines 287

Vol l""

MINING PRIISS

tur tilling i

product*. d

Perm i

Palalltle* U ■ Inflal mlBM Editorial

tarries, u B Frano ,111.1 Great Britain
v
i Mining & Smelting • '•■ ^ American Smelting a-
Kenning Co

Hit to Sl.lli. \ N..r man

i..i Miii:.> Slut..... Haul, mini

Tin exports

Tin mining In B. J Viillentlnc. .

improved Ulyaaea h. Hough...,

Peldt, John Denton, death of

ir. California production

M.iin- production

Fenian nunc. Western Australia

Its

Ferguson. James C II Steal roll shells

m Copper Queen mine. Nevada

Ferrelra Deep, Ltd.. Rand, .lust prevention

r*erro*allo) s. V s,. mui k.t. .i

oaanBaneae Edtiorlul. . . .

An. I war

Price

Feuat Arthur ....Crude methods of disposing of cyanide

slag. . . .

Fidelity Gold Mining Co., Colorado

Fields MlnliiK * Milling Co., Wisconsin

New development

Fife Coal Co., Scotland, 'wireless' telephone...

Filter, Oliver, Operation In the Qlobe mill

II. A. Morrison and H. O. Thomson....

•Flltroe' tile

Financier! and mining Editorial ....

First-aid content, Arizona, Blsbee

. '.iit.st. Arizona. Phoenix

. '..ntest. California. Jackson

.'.•iiiest. California, San Francisco

Contest, Nevada, Ely

.'.•ntest, Nevada, Reno, mine rescue

For gas and electric shock

First National Copper Co., company report

Fissure veins, True H. C. Burton....

W. Prince Catlin

Flagstaff mines. Nevada

Flaxle Mines Co.. Nevada 461,

Fleming, James A Early leaching experiment....

Flint pebbles. U. S. Imports

Flints, r. s. occurrence

Florence-Goldfleld Mining Co.. Nevada 3S4. 576,

Florida, phosphate production

Flotation, Anaconda Editorial....

And the patent law Editorial. . . .

1 >it to James M. Hyde. . . .

And zinc recovery

Application to gold ores John Bevan ....

Minerals Separation, Ltd.. suits

.Minerals Separation. Ltd., v. Miami Copper Co

Of the Elm Orlu ores Editorial

On quicksilver ores Editorial....

v. cyanide Editorial....

Flower. Richard C, career and capture

Flue-dust smelting

Flumes, timber

Fluorspar In electric smelting of iron ore

Robert M. Keeney....

I ' s. production

Fluxes, cyanide practice

Foote. Arthur B Improved cam for stamp-mills....

Foreign Trade Council Editorial. . . .

Forest products, U. S

Forge, low pressure oil

Fortuna Mines Corporation, Fortuna mine, Arizona

France, coal production

European war, as seen In

Iron production

Modern Industrial chemistry Editorial....

Srtaelters

South American trade

St. el production

Franklin, Jr., mine. Michigan

Franklin Mining Co., Demmon. Michigan

Taxes

Freeman grinding pan Editorial. . . .

Freight situation and American owned foreign boats

Editorial. . . .
Fremont Consolidated Mining Co.. Drytown. California . .
Fri fi h Gulch Dredging Co., Breckenridge, Colorado ... 157.

61S,

Frontier, Pioneering in old countries Editorial ....

Fry C. .1 Revision of the mining law. . . .

Fuel. Natural gaseous Editorial....

Oil. I", S

Fuller's earth. California production

U. S. production Editorial....

Fulminate for caps, and quicksilver

Fume litigation. Selby Smelter Commission report

litigation, smelter. Selby Smelting & Lead Co

Editorial. . . .

Smelter, Utah decree Editorial....

Function of lead salts in cyanidation. ,G. H. Clevenger. . . .
Furnace, bullion melting

,r aber du Faur tilting

Hegeler roasting

Johnson electric zinc smelting at Keokuk. Iowa

Editorial

Reverberatory, and powdered coal Editorial....

Roasting, Matthiessen & Hegeler

Zellweger roasting

Fuse. Handling and trse of

Future of copper prices Editorial....

1011
iSS

■41

933
111

.:iv
.;>_■
•,s,;
809
576
II
705
lit
379
704

141

194
817

457
1"S

584

:: 5 7
359
114
855
501
:,7i
116
4 55
731
581
452
506
778
S57
148
409
409
932
664

586
728
340
413
732
22S
545
585
159
69 4
300
ISO

335
135
415
955
168
924
584
699
184
54S
1S4
543
354
792
184
876
232
928
318

317
502

974
587

21
S67
9 64
929

S6
729
947

939
865
635
260
300
397

239
359
477
46
444
203

il.iiki Oold MlnliiK '

in ,.i ..iini Hon
Oannett, Hem v. death •■!
i in. .in. i end i'i Ifonofl pi

all. I .. i ■.. i I
i;.iiii..t. ebraalve, i" B. production

Garrison, i', Lynwood Beward Peninsula and it»

i. limn* problema. . . .

Qa* and first aid

Ami ..ii i.md. California legislation, Washington. i> C

111,

Coal, cyanogen in

Coal, manufacture

Coal. Wldnes, England

I n mines and effects

Making coat, Belfast, Ireland

Matural, California production ...501.

Oltto Editorial

Natural. Kansas production

I'i It. Editorial

Natural, map ,.f U. S. deposits

Natural. Ohio production

Natural, Oklahoma production Editorial...

Natural, Pennsylvania production

Natural, Texas production

Natural, r 8, production

Natural, West Virginia production Editorial....

Petroleum, and brine wells of Ssu-rhuan. china

Thomas T. and M. Carleton Head. . . .

Poisoning, artificial respiration

Producer, Chapman

I'll nips, Humphrey

Gaseous fuel. Natural EdltorlHl. . . .

.Mines, electric Incandescent lamps In

Gnsollne locomotives and the health of miners

O. P. Hood 585.

Locomotives In mines and air depletion

Gauf v. Apex mines, Rand

Gaylord-Dante mine. Cripple Creek, Colorado 75, 231,

423, 502, 575.

Geldenhuls Deep. Ltd.. Hand, sand filling

Gemini Mining Co., Eureka, Utah

Gems, California production

General Electric Co., new high-voltage oil switch

General Filtration Co., Inc., porous mineral medium

General Mining & Finance. Rand

General Petroleum Co., California, company report

Geological report on the Collbran Contact within the Sunn

mining concession, Korea D. J. Higglns. . . .

Geological Society of America, correspondentship elections

Editorial. . . .

Geologists. State Editorial

Geology, Kalgoorlle J. L. Connor....

Study In applied C. A. Stewart....

George H. Crosby Mining Co., Arizona

Georgia. Gold mining in Claud. Hafer. . . .

Metal production

Mineral production

Gerber. H. C. Death of

German Southwest Africa copper production

Germany, Alsace-Lorraine, mining in

And copper market Editorial. . . .

And English coalfields

Bank of, gold reserves Editorial....

Bills outside of Empire Editorial. . . .

Copper production

Copper supply and war Editorial ....

Cyanide and beet sugar residue

Cyanide now available from Editorial....

Dyes exported to U. S

Dycstuffs Editorial

East Prussia amber production

Electric power

Hydrogen

Magdeburg potassium cyanide

Petroleum production

Platinum deposits of Germany's paleozoic

P. Krusch (translated by F. Sommer Schmidt) ....

Scientific management of industries. .H. N. Stronck....

Smelters

South American trade

Zinc production Editorial....

Gertie Mining Co.. Idaho

Getting land for taxes in California

Giant Mines, Ltd.. Rhodesia 336,

Gila Canyon Copper Co., Chilito. Arizona 193,

Giroux Consolidated Mines Co., Kimberly, Nevada, churn-
drilling

Glaciers. Alaska

Glasgow & Western Exploration Co.. Utah. Montreal mine.

Glencoe mine, Utah

Globe and Mueller tube-mill liner

Globe & Phoenix Gold Mining Co., Ltd., Rhodesia 72,

336. 808,

Globe Consolidated Mining Co., Dedrick. California, Oliver

filters

Ditto H. A. Morrison and H. G. Thomson ....

Godiva mine. Utah

Gogebic range, Michigan, Low drill-repair cost

J. F. Berteling. . . .
Gold, Alaska. Fairbanks district production

Alaska, Iditarod, Innoko, and Ruby districts production

Alaska production 590,

Alaska. Seward Peninsula production

And silver alloys

And silver, Weighing minute spheres. .. .J. I. Blair....

Arizona production

Australia production

British Guiana production 377, 650,

California production 349, 501,

Central America, Salvador exports, and silver

Colombia exports

Colorado production 231,

Dredging, Application of jigs to.... James W. Neill....

Ditto Editorial

1135

111
10

(07
711

111

111
III

3«7

9211

705

867

664
867
664
111

Bit

867

.'.J'.i
765
398
108
867
693

592
608

7.':

931

801
117

929
1 66
357
500
707

710
319
193

3 30
667
953

38
466

4 64
120
451
5119
925
743
830
120
981
729
511
567
543
924
188
188
567
935

879
618
354
792
278
76
634
959
460

454

660

1010

255

959

558
554
117

599
■122
656
820
734
188
526
74
198
707
929
648
878
705
839
903

MINING PRESS

Vol. 109

411

513
953
249
963

884

662

717

182

743
959
971

Pag*.

Gold, Dredging. California Industry Editorial.... 201

Dredging, Philippine Islands 570

Dutch Bast Ini non 328

Eastern statee production 38

Exports Editorial 4

. Malay States, Raub mine 842

Bond luctlon 9jj5

Ida; on • ■ -31

on -*'•>■ 959

London Imports 161

Mctulllc, Auto-reductlon in the precipitation of

Victor Lenher.
.Miner's point of view. Steam stamps from i

Algernon Del Mar.

ng In Georgia Claud. Hafer.

g on the Amur W.

team stamps and Algernon !»♦*! Mar.

I Mtto H. \V. llardlnge.

Mongolia mining 410

Montana production 30

Nevada production 424

New Mexico production 76

New Zealand production. Auckland province 1003

New Zealand production 198, 613, 919

Nova Scotia 971

' mtarlo. Porcupine mining and war 733

■Miturlo production 31, 117. 463. 858

treatment, simplification of.. Noel Cunningham.... 19

^'on production 195. 705

Ores and metalltcs 651

t. Application of flotation to John Bevan . . . . 413

Peru coinage standard 780

Peru production 68

Philippine Islands milling development ..C. M. Eye 287

Queensland, Australia, production 605. 616, 961

Hand production 626,

Ditto Editorial . . . .

Recovery In dredging Charles Janln ....

Relative natural and commercial scarcity of the

metals Edwin C. Eckel. . . .

Reserves, Bank of England and Bank of German v

Editorial

Rhodesia production 72. 261, 459. 808.

Russia mining

Siberia production 144

South Dakota, Black Hills production

Texas production 819

Transvaal production 72. 614. 1001

Treatment with nitric acid 886

U. S.. Eastern States production 110

U. S. exports 580

U. S. exports and Imports 934

Ditto Editorial 239

U. 8. production 861

Utah production 70S

Washington production 77

West Africa production 217. Ml. 965

Western Australia mining, men employed 815

Western Australia production 25, 381. 499. 851. 972

Western Australia production decline ....Editorial 667

Wire and leaf 188

World production 908, 1001

Wyoming production 117

Gold Bond Leasing & Development Co.. Colorado 30. 931

Gold Bullion mine. Alaska 2 ■

Gold Chain Minlnc Co., Mammoth. Utah 117

Gold Chief mlne\ Ploche. Nevada 3S5 162 485

Gold Cup Mining Co. organized 157

Gold Hill and Walter i ;. Newman 110

i 111! & Iowa Minos Co.. Idaho 6i(

r Mining & Smelting Co., Mullan. Idaho .... 350

Gold Ring Mining CO., Alaska 264

Gold King Mining i Creek, Colorado. .. .461. S:< I

Gold-Platinum Mining Co., Nevada 976

Gold Print*. • Mining ft Leasing Co.. Nevada 271

Gold Road Mines Co.. Arizona 460 734

Golden Center Mining Co., Grass Vallev. California .' 383

Whiskey vein , S56

Cycle Mining Co.. Cripple Creek. Colorado. . . .30. 75
„ , , 860. 884, 123, 586, 575. 700. 735. 822

Golden Eagle Mining Co., Alaska *>64

Golden Horse-Shoe Estates, Ltd.. Western Austrlta . . . 2".

„ ta „ 882. 498. 614. 697. 854,

Golden Rev. Hdated Gold Mining & Milling Co..

Terry, South Dakota 462 702

Hidden Fortune mill

Nevada 30. 7ti 18*4

886, 425. 686, 576. 701, 737, 857. 931. ions

And Aurora Consolidated Mines Co .10 S7 \ui

Company report 775

Costs 590

Gold field Merger Mines Co.. Nevada

Company report 736

Is Rhodesia n Development Co 265

Goldschmtdts, de tinning in England 653

Gore. Bancroft Labor crisis in Chile 363

Government Gold Mining Areas (Modderfontein 1 Consol.

Ltd., Rand 99, U 2. 731

Qovei ed merchant ships Editorial. . . 3<»2

Gow. ';. Aubrey Ore. ... 187

Graham rheostat resistance Mock 149

Grain mill explosions, I". S 964

Grnnbv Consolidated Mining. Snwdtlng ft Power Co« Ltd

British Columbia 110. 121, 233, 2fi*. 813 346 165

fil7, 689, B96, 1010

Anyox property :.•>:» 926 976

Company report 615 :*"

Tn Alaska 11, 2*jj 530

Grnnbv Mining & Smelting Co.. .ToplLrt. Missouri. .208 232 654

R. & H. concentrating plant , , , < :<r.

•■ Lake smelter. Illinois , : •• r,

Ditto E. H. Leslie 3*5

ml Mining I in. Utah. ..117, 386 168 660

Grand Gulch mine \ r izona 74

Gran it i', Georgia production , 4 6fi

Ireland production

Washington production , 77

972

852
112

Page.

Granite Gold Mining Co.. Alaska 264,601,

Granite Gold Mining Co., Victor. Colorado, and Vindicator

v. Teller county 168

Granite Hill mine. Oregon 861

Granville Mining Co., Ltd.. company report .".

Graph! t< lal, Niagara Palls

California prod tie t ion 929

»n's boiler 902

Electric furnaces and uses 188

In ores and cyanide treatment 608

U. S. Imports and production

Graves. Thomas A. Examination of placer ground. .

Great Boulder Perseverance Gold Mining Co.. Ltd.. com-
pany report 614

Great Boulder Proprietary Gold Mines, Ltd.. Kalgoorlle.

"Western Australia 882

Company report

Cyanide consumption and quicksilver loss

Victoria mines 854

Great Britain, smelters 86 1

South American trade • 792

Great Cobar. Ltd.. Cobar. New South Wales 121

Great FIngall Consolidated. Ltd., Western Australia

Company report 1 63

Contract work 697

Costs 104

Freeman grinding pan 318

Great Northern Development Co.. Alaska 500

Green Hill. Cleveland, Idaho 350

Greene Cananea mine, Sonora. Mexico. 159. 208

Gregorv. J. W Rand banket. Horwood reply to

discussion. . . .766. Sll

Grenfell failure. London 162

Grier. Thomas Johnston, A pioneer mine manager, death

of T25

Death of Editorial.... 469

Monument B62

Will 696

Grinding pan as a regrinder William S. Mann. .

Pans Editorial. .

Pans, Economical ^liming in ....M. G. F. Sohnlein..

963
317

692

Gross & Dixon Gold Mining Co.. North Carolina

Grothe. Albert, death of 164

Guanajuato Consolidated Mining & Milling Co., Mexico.. 580

Guatemala. Imports and exports 792

Resources 797

Gullachsen. B. C Hydraulic stowing in the gold mines

of the Witwatersrand. . . . 801

Gumaos Placer Co., Philippine Islands 570. 780

Gun-cotton 729

Gypsum. California production 929

South Dakota production *53

U. S. production 99

Hafer, Claud Gold mining in Georgia. . . 963

Ilaggin. James B., death of 4fi4

rue, William, and W. D. Pagan North Star mine,

Grass Valley. . . . 549

Haiti. Imports and exports 792

798

Haley, C. S Plan for reviving hydraulic mining — I. II

914. 943

Ditto Prospecting on the Upper Magdalena. . . . 404

Mall pr -ss Editorial. ... 512

Ditto Howard F. Wlerum. . . . «92

Process, Experimental development

James W. Melll , . . 923

Ditto Howard F. Wlerum 518

Hamilton. K. M Solution control in cvanldation. . . . 145

e1 Mining & Milling Co.. Mlddleton, Colorado .... 384

Hammi-r drill. Sullivan 'DP-33* rotating 937

Hampden Cloncurry Copper Mines,. Ltd.. Cloncurry.

Queensland 121

Company report 81

Hanaoka mine. Japan Editorial.... 201

Hancock Consolidated Mining Co., Hancock, Michigan. .232, 41S

Handling and use of fuse . 444

Boulders at Andrada L. C. de la Marllere. . . . 761

Hanford Mining Co., Joplin, Milsourl 457

Harding.-. H W Short tube-mills 218

Ditto Steam stamps from a gold miners

point of view. .

Hardlnge hall-mills and cemented gravel... V. A. Stout.... 130

Mills. Motors for driving 7 12

Mills. Use n f herringbone gears to drive 758

Harney Peak Tin Mining Co Editorial. ... 790

Harrlmans and mining George E. Collins . 528

Hasaml gold mine. Japan, closed 703

Hatch. F. H Rand banket, Horwood replies to

discussion 297. 337

Hawaii and California lumber 924

Hawkeve-Pluma mine. South Dakota 998

Hayden, Stone & Co. and Butte-Duluth mine 92*. 969

Ditto Editorial. ... 039

Head-frame. Concrete C. T. Jackson.... 99

Health of miners, Gasoline locomotives and

O. P. Hood 586, 592

Hecla Mining Co.. Burke. Idaho 350. 535

Hecla Mining Co.. Chewelah. Washington £76

Hector mine. Idaho 461

Hedley Gold Mining Co.. British Columbia ..346. 347. 46

: r roasting furnace 397

Iberg Mining Co., South Dakota 463. 6'..".. 858

Incorporated 112

Heidelberg property, Dead wood Business Club. South

Dakota Ill

Helnze. F. A., and Gould litigation 652

Death of 772. :*o

Legal entanglement 11°

Help the Belgians Editorial .... 709

Henrietta or Big I mine, Tdaho 100S

Hercules Mining Co.. Burke. Idaho 76. 350

Hercules Powder Co.. Missouri drilling contest 619

Hercules Powder Co., Utah 824

Vol 109

MINING PRhlSS

l:t

H N Valuation <>r dredaint ground ... 03
gbone ffeera Use ■ •' t" «iti\ mllli
Item it > ' B Valuation --f dredging ground

South 1 takota . . . 46.1
Hlgglna, 1 ' on lbs Cotlbran

II
•ntllatlon h mines of 1

>ii|..i lor dlsl ' l< '■

too 1-lKl-t

A i .Ill

& Sohn. A run. annual OOppOI report

HohL i* j. ..Valuation of .ir.dKiim ground. 1

trie, First motion

trie, in Cleveland -Cliffs mln«i . . r. 1: Stanford.. t tt;

Little Tubk't

Hoisting accidents in Waatorn Australia s;s

Welfare work among mint workers.... 7*7

Holland, Patrlek J., deatb of ill

Holland, smelters 354

Holllngar Gold Mines, Ltd., Tlmraons, Ontario..

*5S. 463. 673. 703. 73S. 77y. SI9. 864. 891. 333. 1010

Mm bevel- geare

Mill Treatment results,

Holllng* i Reserve, Tlmmlns, Ontario 733

Holmes, J A American Mining Congress, Phoenix, Ai I cona BOB

Holmes, Robert, v. St Joseph Lead Co Editorial.... 981

Rolt*Dern furnace BG

Homcstukc MlnliiK Oft, Lead City, South Dakota ....11-'.

IIS. ::*7. 267. 2:2. 168, 708, B4S, BBS, 178, 1010

Christ mas dividend 1004

Blectrtc power at J ease Simmons.... 374

Bmployee'a aid fund 660

Labor conditions Editorial 818

New construction 852

New manager 696

Superintendent Biackstone Editorial. . . . 544

Telephone system 196

Wage Increase 938

Honduras, Central America, gold production 955

Imports and exports 792

Mineral resources 797

Mining and war BBS

Mining companies 586

Stiver production 955

Honolulu Consolidated Oil Co., California 383

Hood. O. P Gasoline locomotives and health of

miners. . . . 592

Hook, J. S. . .Rand banket, Horwood reply to discussion. . . . 186

Hooke, A. W Juga estimates. . . . 414

Hoosuc tunnel. Driving, and the lessons it taught

P. B. McDonald 559

Hopaloosa Prospecting Co., Missouri 928

Horn Silver Mining Co 652

May, \V D White Island sulphur deposit.... 913

Horwood, C R Rand banket, replies to discussion....

- ■ also 'Rand* 186, 297. 337. 376. 413. 462, 766, 811, 996

Hough, Ulysses B Improved ore feeder. ... 562

Houghton, Douglass, Memorial to Editorial. ... 626

Hon to make money though mining 591

Hubbard, Harry J., death of 426

l il-Elllott Copper Co., Alaska 776

Hudson Ray Mines. Ltd.. Ontario Company report.... 660

Huerta, passing of Editorial. ... 85

Humphrey gas pumps 108

Hungary, coal imports and production 212

Iron production 552

Huntington-Heberleln v. Dwight-Lloyd sintering processes 378
Hurja, Emll Edward. .. Mining in the Far North: Cordova,

Alaska 225

Ditto Mining In the Far North: Developments of

the Alaska Gold Mines Co 103

Ditto Mining in the Far North: Juneau, Alaska.... 152

Ditto. . .Mining in the Far North: Klondike, the Tread-
gold placers, and outlying districts 848

i ItttO Mining in the Far North: Koyukuk mining

district 416

Ditto Mining in the Far North: Mining revival in

the Ketchikan district, Alaska 10

Ditto Mining In the Far North: Operations of the

Canadian-Klondyke Gold Mining Co., Ltd 769

Ditto Mining in the Far North: Operations of

Yukon Gold Co 568

Ditto Mining in the Far North: Placer mining in

the Fairbanks district 965

Ditto Mining in the Far North: Seward and the

Kenai peninsula 341

Ditto Mining in the Far North: Skagway-White

Horse mining district 609

Ditto Mining in the Far North: Upper Yukon:

Circle City, Eagle, and Woodchopper 887

Ditto Mining in the Far North: Valdez and Prince

William Sound 261

Ditto. . .Mining in the Far North: Wrangell, Alaska. ... 69

Huronian Belt Mining Co., Ontario 891

Hutchings, James M„ Miner's Ten Commandments

Editorial 317, 344

Hyde, James M Flotation and the patent law. . . . 728

Hydraulic mining. Plan for reviving — I. II

C. S. Haley 914, 943

Stowing in the gold mines of the Witwatersrand. . . .

B. C. Gullachsen SOI

Stowing of mine workings Editorial.... 791

Hvdraulicking, Alaska 886

And dredging in Victoria 923

California Editorial 939

Hvdrocvanic acid, determination 300

Hvdro-Electric Power & Metallurgical Co., Tasmania J 9

Hydrogen. Germany 188

Hypotheek Mining & Milling Co.. Idaho 424, 856

Ibex Mining Co., l.nu. Jonny mine ...
Irluh> ol, Austrlu

T< KM

■

imtnti .

i -i Alt n« dlsti I , . .•ii|.h',> oonteni

■

Ddltoi

Georgetown district, phoi

Lead production

Lemhi count) fair

Macki ppi i deposits

Map of

M< tul production ,........!!.!!!!!!!!

Mlnei Lion ........!!.!,

Miners' picnic, Kellogg , ,

Mining <on.lttl«»n«

Sawtooth quadi angle
Mh er production

South Mountain district

Wallace

Idaho-Continental ■'•> , Porl inn. Idaho

Idaho Gold A Radium Mining Co,. Idaho,

rdora mil Kilning Co. mortgage

Illinois, Coal mine wash-houses

Coal production 188,

Coke production

Mineral production ,

Petroleum production

Portland cement production

zinc statistics

Imperial Reduction Co., California, cloudburst

Impression of the Hand

Improved cam for stamp-mills Arthur B. Foot......

* Ire Feeder Ulysses B. Hough. . . .

Incn Mining Co., Peru, Santo Domingo mine

Incnoro Mines Co., Bolivia 796.

Mill, It. H. T. Kllianl

Independence Mining Co.. Manitoba. Canada

India. Bombay silver stocks

British, coal production

Burma ruby mines

Gold production 25G,

Kolar goldfleld, Persistence of ore. . . .T, A. Rlckard ....

Lower Burma, Mining In the Tavoy district

E. Maxwell-Lefroy. . . .

Petroleum In 810,

Tigers and wild pigs Editorial....

Indian reservations, mineral lands on Editorial....

Indiana, coal production

Coke production

Mineral production

Petroleum production 36,

Portland cement production

Industrial Accident Commission. California — See California.
I. W. W. and Goldfleld and Tonopah fires. ... Editorial ... .

In Tonopah, Nevada Editorial....

Industrialism, a man and his job Editorial. . . .

Industry of the Witwatersrand

T. A. Rlckard — Editorial

Infusorial earth, California production

Ingalsbe. F. R Mining law — proposed revision ....

Tngersoll-Rand Co. rivet-set retainer 430,

Ingllston Consols mine, Western Australia

Inspiration Consolidated Copper Co.. Miami, Arizona

28, 114, 156, 420. 458, 652.

And Keystone

Company report

Compressor and hoist house

New Keystone ground for tunnel Editorial....

v. New Keystone Copper Co., right-of-way

lnstituto Mexlcano de Minas y Metal urgia, Transactions

published Editorial. . . .

Insurance premium. Western Australia, Workers' Compen-
sation Act

Rates tumble Editorial. . . .

International Acheson Graphite Co., Niagara Falls, graph

Ite and culm

International lead refinery. East Chicago

International Nickel Co 352, 732, 772, 818.

Company report

Editorial

International Smelting & Refining Co., Globe. Arizona...

114. 156.

And Anaconda Copper Mining Co

International Steam Pump Co. and Power & Mining Ma-
chinery Co

Receivership Editorial. . . .

Tnterstate-Callahan mine, Idaho 350. 658,

Iowa, coal production

Mineral production

Portland cement production

Towa-TIger Mining Co.. Colorado

Ireland. Belfast, gas-making cost

Mineral production

Iron, Alsace-Lorraine production

And steel, New Zealand industry

California production

Canada, mining and government bountry. .Editorial. .. .

Canada, mining industry

Cuba mines. Sanitation work at... Charles F. Rand....

France production

Galvanized, England manufacture

Hungary production

Ireland production

Lake Superior mines, caving system of mining

J. Parke Channing. . . .

"Lake Superior mines. "Ventilation In. Edwin Hlggins. . . .

Michigan districts and. P. P. I. E

Michigan. Mesabi range

Michigan production

Michigan shipments

Minnesota production

tvt ptv MpxIco production

New Zealand deposits

«7
I 10

SOI

..;.n

618
618

110

818

777

618
736

778

974

1008

B8B

I CI
10

624

■

314
855
1 II
9GB
BBS
LSI

920

800

B78

1012

17
208
959
956

448

'.13 5

125

768

935

787
126
546

241
929
100
624
382

929

1005

193

865

892

667

378
941

768
415

969

905

889
816

110
359
894

80
4 50

38
461
149
552
451
806
929
585
732
213
184
486
552
552

451
367

1001
705
975
664
775
815

MINING PRESS

Vol. 109

664
794

Iron. I luctlon 117 ' "

■ist price ■ •""•

Fluorspar*

phlll n province 859

zit

Pig, Colorado | i«?

li-'VfiV 8^8

in !"• «*• J

■ Ion

turai and commercial ot the

Edwin C Eckel ...

Pig. *". S. production - • • ■ ■ • • - -|-j

Editorial. . . . 62a

rketed JJ[*

J"?

Auction J°2

U 366. 664. 861

Virginia production 3 »3

Iron A: Silver Mining Co., Lea ■■■ 420

77,

Iron Can Copper Co., Copper mil. Arizona 1S6, 776

inder'

Iron Mountain mine, Keswick, California

lone flux, Queensland production 961

lo. 75. 231 58. 931

• Copper Co.. Houghton. Michigan

192

Italy, topper production 120

■ oleum production 986

Uth American trade 792

Ivanhoc Goid Corporation, Ltd.. \Wst.-rn Australia

•;i4. 697. 864, •>:-

Jii< kling, D. C Mining in Utah 301

Jackson, C. T Concrete head-frame. ...

ion, Anton J., death of 738

is, William, and scrap metallurgy Editorial.... 85

Caradoc, death of 505

Janin. Charles Dredge construction In Portuguese East

Africa 177

Ditto Recovery of gold In dredging.... 717

Japan. Ashlo Copper Co., dust chambers at smelter 13

Copper production 120

Cyanide famine 826

Hanaoka mine Editorial 201

Hasaml gold mine closed 708

Kano copper mine 196

Nippon Oil Co

Petroleum production 686. 935

Smelting Editorial 359

Tokyo, Talsho national exposition

Warren D. Smith 490

Zinc production Editorial. ... 167

Jeffery 'Quad' truck 508

Jennings, R. C Valuing placer ground.... 527

Jerry Johnson Gold Mining Co.. Colorado, company report. 502

Jig*. Application to Bold dredging James W. Nelll.... 839

Application to gold dredging, James W. Nelll

Editorial 903

Jim Butler Tonopah Mining Co.. Tonopah 76, 116, 159,

351, 385, 436, 608, 577, 659. 823. 860, 894. 932. 1009

Company report 857

v. West End. Nevada 619. 702, 932. 976, 1009

Jim Fair mine, New Mexico 775

Johnson. W Origin of the diamond.... 409

Johnson electric zinc-smelting furnace at Keokuk. Iowa..

Editorial 239

Jones, I* M- and George S. Rice Explosion test at the

experimental mine 877

Jones, Thomas D., and U. S. Reserve Board. . .Editorial. . . . 167

Joplln district 232. 774. 857, 975. 1008

District and Australian zinc ores Editorial.... 625

District, ore market 113. 351. 384. 465. 654. 662

District, ore market and European war 304

District production 351, 701 B28

District, strlp-plt zinc mining 305

I rict. topographic map 619

District, wet concentration 340

District, zinc production 354

District, zinc smelters and European war 530

Josie mine. British Columbia 933

Juatin property. Alaska 153, 892

Nigeria l Tin & Power Co., Ltd., estimates

A. W. Hooke 414

Jumbo Extension Mining Co.. Goldfleld. Nevada. .. .76. 126

461, ". 736. 823. $94. 526. 935. 976

Company report 310

Jumbo Mining Co.. Sulzer. Alaska 10. 69. 499

Jupiter Mines. Ltd.. Ontario 738. 891

Mine and M« Kinl.y-Darragh, Ontario ." 1004

Kalgoorlie geology J. L. Connor 493

Kalgoorlie & Boulder Firewood Co.. Beria Consols mine.

Western Australia 385

Lancefield mine 155

Kalgoorlie & Boulder Mines Water Trust. Western Aus-
tralia, water used *>f,n

Knlgurll Gold Mines, l.td.. Western Australia

Kampong Kaurantlng Tin Dredging Co.. Australia 17

Kano copper mine, Japan 19R

Kansas, coal production so

Galena mining

Gas. natural production » Editorial! . 867

Mineral production 70"

Missouri-Oklahoma district — See Joplln district "

Northeastern oil and gas territory Editorial. Bfifi

Petroleum production r;6 935

Portland c« menl production . .' 3S

Zinc statistics 114

Katanga mines. South Africa Editorial..

; 1 r production ' -'"

Kauri sum. New Zealand production 919

uses , 816

Kavtinaugh-Jo Dandy mine. Cripple Creek. Colorado

76, 331, 1: :

Keeney, Robert M Fluorspar In electric smelling or

ore 335

Kelly, David John, death of

Kelvin-Sultana Copper Co.. Arizona 6.>.

Kemp, J. F., ore deposition 604!

K.nai-Alaska Gold Co

Kenne'-ott Mines Co., Alaska) Bonanza ai

Kennedy Extension Gold Mining Co. v. Argonaut Mining
' ildH

- i J*. 2 S .

Kennedy Mining & Milling Co.. California, First-aid 601

Ington mine. Alaska 892

Kentucky, coal production 248

Coke production

Minera i production 66 t

Petroleum production :: ' ; . 986

Kem Trading & Oil Co.. California

Kerr lake, Cobalt, Ontario, draining 260

Kerr Lake Mining Co.. Cobalt. Ontario 159, 42!. 199, 7":

puny report

gnaw Copper Co.. Man dan, Michigan 102, 418

Keystone Copper Mining Co. and Inspiration Consolidated

Copper Co 1005

Kiaochou . Mining near 4 ~ « »

Klllanl Incaoro mill. Bolivia. .

Kilos into troy ounces 415

King-posts in stamp-battery 149

King's Asbestos. Rhodesia 72

Kirov. K. B Report of committee on revision of

mineral land laws 869

Klrkland Lake mine. Ontario 696. 703

Klondike gold production 463

Knob Hill Co., Republic. Washington

Knopf, Adolph, and ore deposition 604

Ditto Platinum-gold lode deposition In southern

Nevada 990

Knox. Henry H Rand banket. Horwood reply to

usslon 1S6

Knox, Newton B Upper Yenesel valley and adjacent

Mongolia 922

Kclar. Persistence of ore at T. A. Rlckard. . .

Kongsberg mines. Norwav 924

Korea. Oriental Consolidated Mining Co 159. 233. 312,

426. 537. 780. 977

Ditto Editorial 625. 660.

Oriental Consolidated dynamite

Seoul Mining Co 77. 352, 426. 578. 779.

Suan Mining Co.. Geological report on the Collbran con-
tact D. F. Higgins....

Krusch. P., translated by F. Sommer Schmidt. . .Platinum

deposits of Germany's paleozoic

Kyshtlm Corporation, Ltd.. Kyshtim, Perm. Russia. 121. 739,

Company report 2 2 4

729

977

772

Labor as an Investment Editorial....

Ditto .• Fred H. Rindge. Jr

Bureau of Safety

Butte unions

Colombia

Cost. Portuguese East Africa, dredge construction

Crisis In Chile Bancroft Gore....

Department of, and Bureau of Mines Editorial. . . .

Mexico, and its peculiarities Max J. Welch....

Mexico, San Luis Potosi conditions

Panama canal

Safety, Bureau of Editorial. .. .277.

Southern Rhodesia

Unions, Butte, Montana 424.

Ditto Editorial 360.

Unions and liberty Editorial. . . .

Unions' proposals in Western Australia

Western Australia troubles 24. 155.

Laboratory roaster

Study of secondary enrichment Editorial....

Ditto C. F. Tolman. Jr

Lady Harriet mine. Western Australia

La Exposiclon Mining Co

Lake Shore Engineering Works "Iron Finlander'

Lake Superior copper miners and European war

Copper region map

District and labor agitation Editorial. . . .

District, copper mining Industry

District copper mining: present and future — I

Thomas T. Read. . . .

District Iron mines. Caving system of mining

J. Parke Channlng....

District, iron mines, safety work cost

District strike, cost of militia

District. Ventilation in the iron mines of the

Edwin Higgins. . . .

District, war effects

District writings Editorial

Lake Superior institute of Mining Engineers mining meth-
ods on Marquette range

Lake View & Oroya Exploration, Ltd.. company report..
Lake View & Star. Ltd.. Western Australia

Company report

Lampa Mining Co.. Ltd., Santa Lucia. Puno. Peru

Francis Church Lincoln. . . .

Land for taxes In California. Getting

Lane. Herbert Management of a country smelter....

Ditto Ore contracts and the smelter....

Lnnc-eloth, Jacob, death of

Lnnglaagte Consolidated. Rand. v. Victoria Falls & Trans-
vaal Power Co

Lanyon-Starr Smelting Co.. Bartlesvllle. Oklahoma

Large versus small stamps Editorial....

La Rose Consolidated Mines Co.. Cobalt. Ontnrio

159. 190. 19fi. 267. 537. 573. 550, 702,

In gold fields . .

71 !
712
4 21

384

■ms

17S

3 63
360
S97
660
768
360
459
461
431
626
881
381
7S6
433
6(9
156

1"02
902
531
871
167
380

871

4 51

fin*

115

3fi7
418
930

7<o-

706

R ' H
t lit

v,,i 100

MINING I'KLSS

1.44 lt,.«.- Kfttenslu

Km* AntroM

lie

2111

lit
ii

boo

Bit
10

6U0
It]

ooe

361
260
148

291

324

929

Tor.

i'.i.s
351

SSU

807

664

426

76
l'ir.
886
188

86
529

P 'tint. treatment coati ui ih«

nglon
l-i~i I'

■!

SOUtb Al.ull..i
llStl Hi lli'lt. I tlVVI lllllls

I. III. I ..ii-..

Edltoi
lotatlon un.l the patent... Editorial....

Mn. ii

Mlnli I inn commission
Minn. i ; . 1 1 1 . . i .

Mining, revision, .ni.1 Commlli Wines and Mining.

Editorial ...

Mining. Revision .,f w F, Collll

1 int., Clarence K. Colvln. . . .

Ditto C. J l''r.v

inn.. r. it. Ingalsbe....

Ditto. ii. U Sheldon. . . .

Mining, revision, Report of committee. .E, n Ktri.\. ...

Mlnli m, Win k lor Edit oi

Lawrance, Prank. .. .Darrow tailing treat m at Hunker

Mill

Lawson, Andrew C Diffusion --i on deposits....

Ditto isitlon m jm. I near Intrusive rocks

meteoric waters

Layng, Haral it Sulpho-cyanldes in cyanldatlon....

Ditto Titration results anil solution control in

. yanloing

i^. Calumei .v Hecla process Editorial. . . .

Chlortdlslng, Mines Operation Co., Utah ".

Experiment, Early lames A. Fleming 1 . . . .

Experiments on AJo ores — I. II. Ill

Stuart Croasdale. . . . 209, 262,

Mines Operating Co„ Park City plant

Lead, \ii"ii.i production

California production 349,

Colorado production -31.

Eastern States production

Idaho proiliictli.n 231,

Joplln district production

Market

Missouri. Flat Ktvcr mines, and shoveling machine....

E. 11. Leslie

Missouri production

Montana production

Nevada production

N,\v Mexico production

Oregon production

Ores. Coeur d'Alene district, ami sulphur content

Poisoning

Ditto Editorial

Poisoning, pottery Industries

Prices 34. 35. 80. 120. 161. 197, 235, 274, 313. 353. 387,

127. 151',. 465. 539. Sill. 5SU. 622, 662, 704, 739, 740,

781, 826. 860. 898. 899. 934. 978. 1012

Queensland production 961

Relative natural and commercial scarcity of the metals

Edwin C. Eckel 182

Salts In cyanldatlon. Function of..G. H. Clevenger. . . . 635

Silver ores, Smelting costs and prices for

L. S. Austin 170

Smelter, East Helena. Montana 454

South Dakota production 853

Texas production 819

U. S. production 924

Utah, Bingham Canyon 191

I'tah production 705

Washington production 77

Western Australia production 381, 861

Wisconsin, production by districts; Platteville ore mar-
ket 70, 305, 456. 616, 817, 970

Leasing bill. Alaska coal 615

Bill. Alaska coal. In Senate 571

Hill, in Congress 530, 615

Leaver lease, Tlntlc. Utah 117

Le Due mine, California 856

Lena Goldflelds. Siberia 251. 608, 808

And European war 472

Lenher. Victor Auto-reduction in the precipitation

of metallic gold 411

Leonora claim, Utah 577

Le Roi mines, Rossland. British Columbia 346, 935

Leslie. E. H Colllnsville smelter of the Bartlesvllle

Zinc Co 204

Ditto Nassau zinc works at Depue. Illinois.... 475

Ditto National Zinc Co.. Bartlesvllle, Oklahoma.... 136

Ditto. . . .Rose Lake smelter of the Granby company. . . . 395

Ditto Shoveling machines at Flat River 807

Ditto Zinc smelting at Bartlesville. Oklahoma.... 44

Ditto Zinc smelting at Hillsboro. Illinois 280

Lett, S. J Rand banket. Horwood replies to discus-
sion 186

Lewis. .7. H Design of the Plymouth mill 846

Lewis, .lames B Tin mining in Tasmania.... 65

Lews Gold Mining Co.. Colorado. Last Dollar mine 423

Lexington Gold Mining Co., Colorado 423

Leyner drill 266, 876

Limbach. Edward C. death of 78

Lime, 'burning', and fuel consumption 567

California production 929

TJ. S. production 428

Virginia production 333

Washington production 77

Limestone, asphaltic. Texas occurrence 927

California production 929

Flux. Queensland production 961

Ireland production 552

Missouri production 664

Queensland, Gore deposits 380

Washington production 77

l.ln. ,.!-

Llndai Lank, i 1 1

• i
Link i

l. in. 1. 1. South Dak. .In prod i lit, ii
Little Bell mini

!'l"le .1 iv inlii,

Pel I, line. P
Little Tuggor holnt
Little w

Locomoth •'. ci ntli I ■. , i

aline, in mines, ami ali depletion

lealth .it miners " P n

Lode mining 1 , Yuk,ui

London, > , i ■ .

i .,,1,1 Imports

Metal Exchange and wai

'■' I" Edward Walk

l .Mini copper requti ■ mi nts
London Electron works Co., England .

London mine, I Colorado ' ,

Loni Pine mine. Republic, Washington '..'.'.'.'

sun Consolidated Mining Co., Nevada .
Lone Star Gold Mining Co., Dawson, Irukon, i

Lone!) Reef Oold Mining Co., Ltd., Rhodesia.. .

FOOd COSl

Long Lake iniiie. i intarlo

I king forward:

American Mining Congress, i'i nix, Arizona.

Calumet ,\t Hecla Safety First'

Mexico: Torres' Constitutionalist manifesto ...

Lorain Coal * l k Co., wheeling Creek mil xploslon

Lorlng, w. .1., welcome banquel

1,1,111 Edltorl -

ii-i riil-iiii] [iroiiiiction

Louvaln University and Cambridge University

Low drill-repair cost on the Gogebic range

„ . •' '•'• Herteilng....

Pressure oil forge

Lower Burma, Mining In the Tavoy district

k Maxwell-Lefroy. . . .
Lower Mammoth Mining Co., Manimotli, Utah. 117, ::."il .".77

Lubricant for high temperatures

Lubricator, automatic rope

Lucky Boy Consolidated Mines Co.. Nevada

Lucky Tiger-Combination Gold Mining Co., company re-
port

Lufkln Rule Co.. combination pocket rule and level

Metallic tape threader

Luning Gold Mines Co., Nevada 577

Luning-Idnho Mining Co.. Nevada 3 Sr»i

Lunt, Horace F Vindicator mill

Lyons Atlas Co.. Diesel engine, Largest In America

MacDonald, J. A Phototopography

MacNamara Mining Co., Tonopah. Nevada

Macadam, California production

Machine drilling efficiency Thomas M. Bains, Jr. . . .

Magnesite and war Editorial....

California production

U. S. imports

U. S. production

Uses and occurrence Editorial ....

Maine, feldspar production

Malaguit Dredging Co.. Philippine Islands

Malay Peninsula tin industry

Tin Industry and Australian jam

Malaya Tin Corporation

Malm process Editorial. . . .

Mambulao Placer Co.. Philippine Islands

Mamie mine. Granby Consolidated

Mammoth Channel Gold Mining Co., California. Crabbe

suit 618.

Mammoth Copper Mining Co.. Kennett, California

269, 313, 427, 535, 574, 658, 777.

Fume suit 734, 930.

Smelter

Mammoth Mining Co., Oregon, suits

Mammoth Mining Co., Mammoth, Utah 117, 463,

Man and his job, A Editorial....

Management of a country smelter Editorial....

Ditto Herbert Lang. . . .

Mandarin Mines Corporation and Yellow Jacket mine, Idaho
Manganese, and effect of war Editorial ....

Brazil shipments

Commercial, American

For use on Pacific coast

New Zealand production

Ores, world's supply

Queensland production

U. S. production 135.

Virginia 333.

Manhattan Consolidated Mining & Milling Co., Nevada....

Manila. Philippine Islands, water-supply

Mann, William S Pan as a regrlnder. . . .

Mararoa mine. Western Australia

Marble. California production

German Southwest Africa exports

Market, Status of the metal Editorial....

Marquette range. Michigan, Mining methods

Marquette Trap Rock Co \ .

Marsh Mining Co.. Idaho

Never Sweat lode mining claim

v. Washington Water Power Co 822.

Marv Mac company. Western Australia

Mary McKinney. Cripple Creek, Colorado 231. 618. 658.

Maryland, coal production

Mineral production

Mascot & Western Railroad Co.. Arizona, incorporated...
Mascot Copper Co.. Dos Cabezos, Arizona

And Big Pine, Arizona

n, 1
lit

11 1

342

984

277
586

lis

lnlll
■

280
1(2

81
542
276
697
697
887

236

:;s:,
r.l 7
842
!il 11
929
574
526
940
64S
5711
333
15
16
903
977
615

776

930
974
4 60
737
536
546
431
440
772
278
724
496
741
919
108
963
861
605
462
454
963
382
929
299
240
595
772
310
270

1008
155
974
236
409
74
74

1006

it;

MINING PRESS

Vol. 109

Page.

861

ley Mines Co o, Nevada ..........

503. 536, 669, 694

And mini- ""

195. -'in

Thompson, Nevada, sm< Her 69*

us, Hoosac tunnel, driving and the lessons it

t 659

,'an

Ing furnaces 1 . <

cln Dredging Co.. Philippine Islands 570

tllnlng in the Tavoy district, Lower

Burma * 48

Mn\ Paj Mining & Milling Co., Eureka, Utah. 117, 361, 3s:.,

McAh i nia 100?

i Driving the HfjOSac tunnel and the

i. night 559

Shaft timbering;, tfeaabl rang sota >•:>«

Id Mining Co, Missouri 931

i Co. titanium testa Editorial 983

i < re U pine Mines. Ltd., Schumacher, Ontario....

733, 738. 1004

! Xiplssing Mines Co.. Ontario 463. 572

i- Savage Mines of Cobalt, Ltd.. Ontario.

81, 169, 386, 458. 703. *. r .s. 977

and Jupiter mine 573, 1003

M Mlllan Mining CO. *InC plant. Hazel Green district Wls-

ii 457

McRae-4 eddman claims, Idaho Ill

i i'<l 924

Meerachaum, New Hexico deposits 819

v i lottfi led Co.. belt conveyors and wet concrete. ... 84

Mellor, IS. T Rand banket. Horwood replies

to discussion 413

Melting out slag notches 994

s and what to do about it

Thomas Darlington. ... 331

La-Nevada mine, Highland. Nevada 484

Menzlea Consolidated Gold Mines Ltd.. Western Australia.

382 853

M.-rion. Henry K.. copper statistics 622! 860

Messina (Ti development Co., Ltd 122. 200. 889

And Grenfell failure 500

Metal market. Status of Editorial. . . . 240

Mine fatalities. FJ. S Editorial 586

Review. New Fork 34. 198. 388. 540, 740, 899

\ugtist number Editorial. ... 543

Metallic tape threader* 276

Metallurgist, scrap Editorial ... . 85

tlve natural and commercial scarcity of the...

Edwin C. Eckel 182

- deposition in and near intrusive rocks

by Andrew C. Lawaon .... 600

la of mining at Republic mine, Republic-, Michigan..

R. B. Wall. i

Of taking mill-head samples Lloyd Robey. . ,

i it testing placer gravels Tames W. Nelll. . .

Ditto Walter J. Radf ord . . . . 5, 221

n Gold A Silver Mining Co., Virginia City, V

385. 659, 1009

Weaver Mining Co 462

Mexican Light A Power Co., Ltd 1010

n Metals CO 459

n Mining .(our nal, The, publication resumed

Editorial 667

Me Ico, Chihuahua mining 621

Coinage, bronze tive-centavo 768

Conditions in 71. :'.12. 621, 73X, 780

'>itto Editorial S5, 239

in. and New York mining Interests 164

Conditions In. Huerta mine titles annulled

Conditions In. mining 774

Conditions In, railway service 587

lion 120

703

i Hon exports 580

I nit- ports 792

International Mining Association 703

Labor and Its peculiarities Max .T. Welch.... 597

Lah-u conditions at mines Editorial.... 360

Map of 504

Mining ondMions 419, 504

Money situation Editorial 359

■ 415

operations suspended 621

Petroleum production , 935

Ports or entry 809

sources 798

San Luis Potosl minimum wage ! ! I ! ! 660

sinaloa and west coast mining outlook Editorial.

Sonora mines 538

Tampl^o oil exports '538 1011

Torres' Constitutionalist manifesto .' 984

Train service 504

Mexico Mines of El Oro ..!....!"!!' 889

A Charlton mine. Rand !.!!!!!!!!' 112

Cyanide practice ' 496

Miami Copper Co., Miami, Arizona. .. 114. 122 154 208 269

^, 313. 529! 572! 816

D *ttO Editorial 203

Company report

Dupes suit !!!!!" 501

v. Minerals Separation. Ltd .228 732

Mica, North Carolina production ......' 705

South Dakota production 853

Michigan, copper companies men employed 232

lountry Commercial Club ....I! 456

untry map ' 773

CoppeT district 658

Copper mines. Efficiency In « !.... 763

, 768

Copper production ' ' Ve's B] G

Copper shipments ' S r ,7

hie range. Low drill-repair cost on the. .'.".'."

J. F. Bertellng 599

Page,

. .1 n. Houghton County casualties 666

Houghton County taxes 816, 928

Houghton memorial Editorial .... 626

Iron ore districts and P. P. I. E 889

Iron River district 306

iron shipments 975

Lake Superior district — See Lake Superior district.

Mai m . Mining methods on the 595

Mesabl range iron 1001

e-set ore -chute 763

Mineral production ~n:,

duction

Portland cement production 38

Itary conditions in copper country

plug met hois is

Trap-rock quarries 7 7 L'

Michigan College of Mines, workingmen's course 1

nning Co., Utah 660

Midas Gold Mining Co., Knob, California 856

And Victor Power & Mining Co 230

Midas mine. Gtanby Consolidated 630, 615

Midlands Oilfields Co.. California 383

Midway mine, Nevada 895

Mikado mine, Verona, Michigan, Low drill-repair cost 599

Mill design and machinery in inaccessible places 416

Head samples. Methods of taking Lloyd Robev .... 188

Practice and cleanliness 41".

Practice, crawl girders in a battery-house 729

Practice, gold and silver launder construction 454

Milling, gold. Development in the Philippines. C. M. Eve. . . . 287

In cyanide A. W. Allen. . . . 177

Ditto Noel Cunningham.... 606

Minas Pedrazzini Gold & Silver Mining Co., Sonora, Mexico 312

Mine accounts, Simple 60

Mine Operators' Association, California — See California.
Owners and the California Industrial Accident Commis-
sion Editorial. ... 744

Products. U. S 924

Rescue contest, Bisbee, Arizona 114

Rescue contest, Ely, Nevada H6

Sampling 567

Signboards 22

Taxation and the conference of tax officials

H. A. E. Chandler 838

Ditto Editorial 831

wastes 495

'Mine Workers Journal" Editorial. . . . 904

Minera La Blanca y Anexas, Cia.. Mexico 580

Mineral lands on Indian reservations Editorial.... 85

Paint. California production 929

Production of Virginia, 1913. . .Thomas L. Watson 333

Statistics 38, 428. 466, 664. 705. 861

A\ ater, California production 929

Water, U. S. production 428

Water. Virginia production 605

Water. Washington production 77

Mineral Point Zinc Co 70

Coker mine. Wisconsin, shaft-sinking record 886

Nassau plant E. H. Leslie.... 475

1 Range railroad, Michigan 928

Minerals Separation, Ltd., Elm Orlu ores flotation

. „ Editorial 545

In Supreme Court 732

Ditto Editorial 743

v. James M. Hyde Editorial. ... 41

V. Miami Copper Co 228. 732

Gasoline locomotives and health of. . .Editorial. . . . 585

Ditto O. P. Hood 592

Ten Commandments 344

Ditto Editorial 317

Mines and European war Editorial .... 317

Gasoline locomotives and air depletion '"' 60S

Mines Company of America 68

Creston-Colorado and Ei Ravo mines ' 419

La Colorado mine strike 77

Mines Operating Co., Park City. Utah 77, 312. 577. S24, 1010

Chlorldlzlng leaching 260

Chloridlzlng roast F. Sommer Schmidt. ! ! ! 324

Mining and financiers Editorial 35<t

And milling at Republic. Washington. . .E. C. Morse. ... 435

Assessment suspension bill 652

Decisions 39, 123. 164. 315. 428, 507, 623. 784. 862', 936

District of Plnos Altos, New Mexico

W. Rogers Wade. . . . 402

Eastern capital and 154

Experts, amateur Editorial.... 359

Hydraulic. Plan for reviving C. S. Haley .... 914. 943

In Alsace-Lorraine, Germany 451

In Argentina , 17

In the Far North Emil Edward Hurja.' ! ! !

10. 69. 103. 152. 225, 261. 341. 416. 56S. 609. 769. R48 887 965

In Spain 56

In the Tavoy district. Lower Burma

„ „ , E. Maxwell-Lefrov. . . . 44K

l n J-Ttah D. C. Jackllng 301

In ^ enezuela 648

Law codification 3o'g'. 731

Law codification commission 927

Law. Revision of the W. F. Collins. ! . . 453

P tto Clarence K. Colvln 106

£ "° C. J. Fry.... 21

pitto.... G. L. Sheldon 259

Law revision again Editorial.... 201

Law revision and Committee on Mines and Mining

Editorial 86

Law revision proposed F. R. Ingalsbe.... 100

Law. revision of. Report of committee. .E. R. Kirbv.... 869

Law revision. Work for Editorial 866

Legislation at Washington. D. C 498

Legislation. Washington, D. C. and war 571

Machinery, driving methods, Western Australia 881

Men and politics Editorial. ... 431

Methods on the Marquette range 595

Mexican conditions Editorial 360

Near Klaochow 450

Properties. Selling Editorial!!!! 628

Vol 1"''

MINING PR FAS

Minims. U.w\«l In l'

• n rtnJ Ed

'Mlllill* ■n<l
Mini'
Mining

Ml0

Bdltorlal

K Woi :

J '1,111

i.il
■
Ion
•ubi m timbering P B Hi laid

■

pla
-

Neck <'n> district
■

I'ltit Klvsr shoveling machines.. K 1 1 I.. Ills

sxperlmental work

Joplln district mines

Kansas-* ikliitioma district St-.- Joplln 1 1 1 .-* 1 1 1 . 1

Mines and mineral tvhliiH ui Panama-Pacific Exposition

Northwestern "ii an.i gas territory Bdltorlal....

Petroleum production

Portland cement produotlon

Bouthweat Missouri mint-. Safety and Sanitary A

atlon

Mitchell coal mine. Illinois, disaster Editorial....

Miipah Bxtenelon Co., Tonopah. Nevada.

imi Copper Co., Nacosarl, Sonora, Mexico.. 1SS, SIS,

Modderfonteln B. Transvaal, Nlesen stamps

Modderfonteln group of mines. Hand

Modoc Mines Co.. High Grade. California 193,

Mogul Mining in . South Dakota

Mohawk Mining Co., Mohawk, Michigan 6S. 112, 232,

347. 427, 580. 658. 873.

Molds, bullion, silver capacity

Molybdenite. Australia

Queensland production 56,

Monarch mine. South Dakota

Monarch oil well, Calgary Held. Alberta. Canada .... 31. 68.

Mond Nickel Co., Ontario, Canada 689. 732. 772.

Honey though mining. How to make

Mongolia, gold mining In

Map of

Upper Yenesel valley and adjacent

Ditto Newton B. Knox

Mongolyor company. Gold mining in Mongolia

Monitor Belmont Mining Co.. Nevada 462,

Montagu & Co., Samuel, silver statistics 160. 313. 539.

662. 739. 860.
Montana. Butte district

Butte district mines and European war

Hutte district mines and unions 424,

Editorial

Butte district strike

Butte district strike and state troops

Butte district unions 189,

Coal production

Copper production 30.

Dillon quadrangle

Bast Helena, lead smelter

Gold production

Lead production

Map of southwest

Metal production

Phosphate. Elllston field

Silver production

U. 9. Geol. Surv. map

Zinc production 30,

Montana-Blngham Consolidated Mining Co.. Bingham. Utah

Montana-Tdaho Copper Co.. Idaho 270,

Montana Minin"' Co., Ltd., litigation expenses

Editorial

Montana Power Co., Montana

Company report

Montana-Tonopah Mining Co., Tonopah, Nevada

76. 385, 619, S23. 932,

Monthly copper production

Moore. Charles. .What is the matter with prospecting?....

Moore process, radium refining Editorial....

Morning mine. Idaho 350,

Morocco, Northwest Africa, mineral resources

Morrison. H. A., and H. G. Thomson Operation of the

Oliver filter In the Globe mill

Morro Velho mine. Brazil

Morse. E. C. . Mining and milling at Republic, Washington

Moscow mine. Idaho

Moscow Mining & Milling Co., Moscow, Utah

Mosquitoes, Eliminating the

Menace of, and what to do about It

Thomas Darlington. . . .
Mother Lode. California, activity

Map

Metallurgical practice Editorial. . . .

Metallurgical practice and Plymouth mill

Mother Lode Copper Mining Co.. Mother Lode property,

Alaska 226, 499,

Motor tires

Motors for driving Hardinge mills

Mount Champion mine, Colorado

Mount Lassen, Eruption of William H. Storms....

Mount Lyell Mining & Railway Co., Ltd.. Queenstown.
Tasmania 122, 808,

Company report

Men employed

Mount Morgan Gold Mining Co.. Ltd., Queensland. Aus-
tralia 122, 300, 340, 616, 716,

Company report

New plant

Mountain Copper Co., Keswick. California 75,

it
279
981

421
664

190

117

B07

157

664
113

its

935
38

931

,-.,;;
976
858
450
730
461

1008
340
73
961
655
117
970
591
410
410
687
922
410
858

1012
S51
266
461
431
572
816
884
176
768
115
4 54
30
30
573
705

1008

931

354

1010
619

277
SO

658

1009
121
257
41
424
815

554
793
435
111
620
14

334
150
150
668
670

698
567
742
700
143

876
82
59

314
988
269

Mlnlnn

11 Aualrulln

i: II -i" I

Uounl

■

■ & Equipment Co

mills

Mules v. eli ,i mines .

Musgrove Mlnli,,.

ik mills. Ni
M) ers- W lialey ■hoi i Una. mi

mine, Kolai district, central ini .65, 95t,

Nassau Zinc Works at DspUe, Illinois..., S II [stalls

National City Bank Bdltorlal

And George E. Roberta Bdltorl

Nation. ,1 c ntratoi Co., Missouri, sludge planl

,i Copper Co., Mullan, Idaho I'M 161 575

i Lead < !o ,

inal Mines Co., National, Nevada .... ..

■ l zinc Co., Bartlesvllle, nkini n

Ditto B, ii L,

Natonins Consoltdat,-,! of California

E'»»eo Bdltorlal. . . .'

Refinancing Bdltorlal.., 2.

Natural gas— -See gas.

Qaseous fuel Editorial

Nature, l:u,klng v. Backing Editorial....

Nau Aug inln,-. Idaho

Navigation laws, U. S., system of Editorial....'

N I'd: constructive co-operation of mining men

Bdltorlal

Needles Mining & Smelting Co., Arizona

Nelll, James W .. .Application of Jigs to gold dredging....

Ditto Editorial

I ill to. Experimental development of the Hall process. . . .

1 into Methods of testing placer gravels ....

Nerchinsk Gold Co., Ltd.. Siberia

Netherlands, South American trade

Neutrality. Philippine Islands Editorial. . . .

Nevada, Austin district

Belmont district

Comstock Lode Are

Comstock Lode mines

Comstock Lode mining operations

Comstock Lode unwaterlng

Ely district Jasperoid

Gold district discovery Editorial....

Goldfleld and Tonopah fires and I. W. W

Editorial

Good Springs platinum discovery 503.

Luning district 536.

Manhattan mills

Map of western

McCoy camp

Metal production by counties

Mining conditions

New York canyon district

One-man carry

Palmetto district gravel deposits

Ploche. Present conditions at James W. Abbott....

Rawhide mines

Reno, mine-rescue and first-aid contest

•Safety First' contests, Ely Editorial

Sliver Park district

Tonogold discovery

Tonogold mines 701, 823. 932,

Tonopah and I. W. W Editorial. . . .

Tonopah district enlarged

Tonopah mines.. 31. 116. 159, 195. 232. 311. 351, 385, 424,
425, 462. 503. 536. 577. 619, 702, 737. 779, 823, 857, 895,

932. 976,

Yellow Pine district. Platinum-gold lode deposit in....

Adolph Knopf. . . .

Nevada-Anaconda property, Nevada

Nevada Cinnabar Co.. Nevada 159, 622.

Nevada Consolidated Copper Co., Ely, Nevada . . . . 11 6. 122.
195. 208, 313, 427, 462, 536. 619, 691, 737. 779,

Ditto Editorial

Accid en ts

Company report 271.

Copper Flat mine explosion

Eureka pit

Eureka pit explosion

Safety First 823.

Steptoe Valley Smelting & Mining Co

Taxes

Nevada Copper Mining. Milling & Power Co

Nevada Douglas Copper Co., Nevada.. 195, 385, 458. 462, 503,

Casting Copper section

Leaching plant

Nevada Hills Mining Co.. Nevada 30. 232. 384. 576, 736.

Nevada Packard Mines Co., Rochester, Nevada

576, 619, 932.

Nevada Valleys Power Co.. Nevada

Nevada Wonder Mining Co., Nevada

Company report

Neville. John Pym, death of

Neville-Free Coinage mine. Cripple Creek, Colorado

75, 575,
New buildings of Bureau of Mines

Porous mineral medium

Portable drill

Ventilating fan

New Almaden aulcksilver mine. California

New Aurora mill An Occasional Contributor. . . .

New Centurv Mining Co.. Galena. Kansas

New Cornelia Copper Co., Ajo mountains, Arizona, Leach-
ing experiments on ores — I, II, III

Stuart Croasdale. .. .209, 252,

And Calumet & Arizona Mining Co

New Hampshire metal production

Mineral production

New Idria

110

a«s

619
958

119

I i
139

1J..

867

658
.'117

1006

90S

923

221

249

792

359

659

462

1009

424

669

1009

1001

625

787

:,:■',

VI"
932
697

76
•124
115
696
634
158
483
778
455

41
486
659
1009
126
659

99
975
898

978
20 3
311
732
651
382
311
976
425
932
351
536
311
737
894

1009
823
736
901

977

931

591
357
624
624
217
57
822

291

383

705

MINING PRESS

Vol. li in

Page
metal produ< lion

• "■•

630, M -

Lit I loi

\,. w Ki atlon Consolidated Cop-

Ditto ...... Bdltorlal. - ■

i. ■■

i" i

i rlcl molyb i 669

776

Meerschaum deposits 819

Mir i ion 76,

Mining districts 819

MoBjoIlon 73::

l< Id

Pino fllstrl« I W. !;■■-■ i b Wade. . . 102

- - . - 7 i '■

New Modderfontein Gold Mining Co., Ltd., Band

New Process Metals Co., Michigan

South i 'akot
Mill practice, with particular reference to continuous

tatlon Jesse st mi n i "us. . . . 722

impany, Washington

South Wales, Broken Hill metal pro 642

Broken mil mines mi

ken mil shipments

Broken mil zinc and war 118

Gold production 198

Mineral production 49

New York, coke ovens 409

tuctlon 36,

Portland cemenl production 38

New York -

Business and European war

Metal market and war 30i

Met 34. 198, 388. 640, 740,

Mining and eastern capital 164

New York, Honduras & Rosarlo Mining Co.. Honduras.... 68

Company report 681

New York, New Haven & Hartford railroad staan

New York exchange 151

New Zealand, Auckland province gold 1003

Gold production

Government coal mines

Iron and steel Industry 806

Iron deposits

Knurl gum 815

Map

Mineral production 919

Mining ami war 1002

Mining Industry, .stale aid Ml

New Plymouth district .-II wells 1004

Operating costs ;it mines near Reefton 626

' >tlra tunnel, South island 340

Point Elisabeth government colliery 964

Silver production 613

Thames district, North Island 614

Thames Drainage Board suspension LOO 8

Whit*- Island sulphur deposit Editorial 903

Ditto W. D. Ilornaday. . - ■ 918

New Zealand Sulphur Co 913

White Island sulphur plant destroyed 679

Newbury Mining Co 468

Newfoundland, copper production 120

Niagara Falls, artificial graphite 80

Nicaragua. Deltrlck Concession eanceled Editorial.... 982

Imports and exports 792

Mineral resources 797

Panama Mining Co. and Tonopah Mining Co 780

Pis Pis district inn

Tonopah Mtnlng Co. property 578, 732

Nickel Editorial 904

And war Editorial 904

Canada 732

Canada and war 772, 969

Ontario and war 818, 891

Ontario production 1 1 7. 468. 858, 891

Relative natural and commercial scarcity of the metals

Edwin C. Eckel 182

Nigeria, Juga Tin & Power Co.. Ltd.. estimates

A. W. Hooke 414

Tin production 5S0

NIplsBlng Mines Co., Cobalt, « mtario. . .117. 159, 190, 196. 233.

-. 504. 580. 621 779, si;., 077, 978

And Mclntyre mine .".7 2

And Mclntyre share 463

And Terk-Hughes property

In goldtlelds 345

New ventures 407

Nippon Oil Co., Japan 68

Nit ra' ports 876

Chile exports problems Editorial. . . . 981

Chile production Editorial .... 829

Nitric acid In gold treatment 886

Nltro lamps Editorial. ... 85

Noble Electric Steel Co., Heroult. California 777

Ferromanganese 379. 383

Manganese 893

Noland, Lloyd Mosquito elimination, Tennessee Coal,

Iron A- Railroad Co 14

Nomenclature, Rock, in new mining districts

C. T. Brodrick 185

Norman. Sidney Norman-Federal suit.... 339

Norman-Fedc ral suit 21fl

North Anantapnr. Tndta ...

North Broken Hill. Ltd.. New South Wales, rompanv report 782

North Butt.- Mining Co.. Montana 208, 351. 461

And 1002

Company report 282

Taxes <I31

N«.T tli Carolina metal production

Mineral production

North Dakota, coal production i

North Mountain Mining Co., < Iherry ' Ireek, Nevada 159

North Son on Id (_•.;

North Star Mines : i. 659

History William Hague and W. D. Pagan ', i :*

Ditto T. A. KIckard, Editorial.. . 544

Taxes B23

North star Mining & Milling Co., Jarbldge, Nevada 76, 1009

North Washington Power ft Reduction Co. litigation. . ,

Northern Ontario Exploi 970

Northern Pacific Railroad Co« and Pittsburgh \- Glllmon

392

Northwestern Australia and Us ml ourcea

» A. W. All. I

Norway and Sweden copper production 120

Kongsberg mines 9 j 1

Mining and war ;,-.tl

Smelters

Sydvaranger property

mines and war 970

Guysoorough county gold mining 26

Mining ;.; I

Nova Scotia Steel ft Coal Co 421, 499, 971

Nundydroog, India 265, 958

O'Brien, W. S., death of 278

Ochre, Georgia production 166

Wisconsin, Highland district

ohio, gas, natural, production 525

Mineral production ,

Petroleum production

Portland cement production

Potterv production 236

Ohio Copper Mining Co.. Bins ham. I' tali 27, 196. 351.

503, 587, 577, 737, BBS, 'X',J

Cop t ro I of B16

Mill Improvements 375

( in — See Petroleum.

And gas lands bill 266

Forge, Low pressure 584

Sulphur 188

Switch, New high-voltage 166

Whale B24

Oilstone, U. s. production 38

Oklahoma. Bartlesville, National Zinc Co..E. H. Leslie.... 186

Bartlesvtlle Zinc Co E. H. Leslie 204

Uartlesvllle zinc smelting E. H. Leslie. ... 44

Coal production 184

, natural, production ,"'.".

Ditto Editorial 867

Kansas-Missouri district — See Joplin district.

Mineral production 466

Petroleum production 36

Zinc statistics 814

Old Channel hydraulic mines. Galice district, Oregon. . lit"., 688

Old Colony Copper Co., Michigan, company report 975

Old Dominion Copper Mining & Smelting Co., Globe, Ari-
zona.. 27. 68, 114. 122. 208, 313. 465. 615, 820, 855. 969.

973. 978, 1006

Smelter, basic-lined converters 340

I Biter, Operation In the Globe mill

H. A. Morrison and H. G. Thomson.... 554

Oliver Iron Mining Co.. Michigan, Section 21 mine 596

Olives and carbon bisulphide 188

Omega mine, California 2:+

One-man carry, Nevada 1

Ontario, assessment work 4 »'. :

Cohalt bullion shipments 702. 933

ilt mines and war

Cobalt mines conditions 499

Cobalt ore shipments 819

Cobalt ores. Sampling and assaying 60G

Cobalt silver mining Industry decline 196

Cobalt silver prices 696

Cobalt stiver shipments 101

Cobalt silver situation 386. 427

Gold production 31

Kerr Lake draining s:tt;

Mineral production 117, 4 63. B58

Mining districts map 891

Nickel industry and war 818. 891

Nickel production 891

Porcupine gold mining and war 733

Silver production 31, 891

Sudburv nickel industry 732

Sudbury ore deposits. Origin of Stuart St. Clair. . . . 243

Toronto mining exchange 891

Ontario Mining Co., Kellogg. Tdaho 350

v. Stewart Mining Co., Tdaho 424

Ontario Silver Mining Co.. Park Citv. Utah 11*6. 1010

Ooregum Gold Mining Co.. Ltd.. India 255. 958

operating costs at mines near Reefton, New Zealand 526

Operations of Canadian-Klondyke Gold Mining Co.. Ltd..

Emll Edward Hurja.... 769

Of Oliver filter In the Globe mill

H. A. Morrison and H. G. Thomson... 554

Of Yukon Gold Co Emll Edward Hurja... 568

Opblr Gold Mines. Milling & Power Co.. Colorado. Relnohl

'rapid cvanldir.g apparatus' 423

Ophir Sliver Mining Co.. Nevada 859, 10(19

Opohongo Mining Co.. Robinson, Utah 117

Ore G. Aubrey Gow ... 187

Chute, Square-set 763

Contracts and the smelter Herbert Lang.... 492

Deposition in and near Intrusive rocks by meteoric

waters Andrew C. Lawson .... 600

Deposits. Diffusion of Andrew 1 '. Lawson .... 20

Feeder, Improved Ulysses B. Hough .... 562

Loader. 'Iron Finlander' 902

Oregon. Jackson, and Josephine counties' mineral resources 824

Josephine County mining and railway 532

Map of 19".

109

MIM\u l'KUSS

Ditto

i •( Ro« i. . Mountain i

Kllol i

tnd mums Edltoi

• 'f BudbUI 91 uart SI Clair ....

Amadoi Consolidated Mines Co., California! lull-

Oro ii line. Lead. s. .11111 Dakota

IkIiik. Ltd., Call fur 11 la 7 7 6,

l.l.l . » 'olnmbln ...

. . dlfflcultlei 631,

■ mine, Western Australia

. . I. t«l.. Kalffoorlle, Western Australia

; Mil report Bl,

>ir>k Goldfields, Ltd., Siberia

Company report

Consolidated Mining Co., Osceola, Mi< Mnan

u: ) ■:.. 817.

<»».irn tunn.-i. South [aland, New Zealand

Ounces, troy, avoirdupois pounds ami kilns

ourn Prelo Gold Mines, Ltd., Hra/.M

inlii,-. company report

Oven, beehive coke, temperatures

■ Gold Mining Co.. Washington

Oiocvrite deposits, Utah 536.

101

7(1
143

1008

1 '.

mi
hum

in 1:1

1 1 j
•;i 1

;i 1

928
340

II. -i
846
in.'
496
117
693

Pachuca vat. model

1 IredBlng Co.. California

PaclDc Cas A: Electric Co. load factor

Pagan. W. D., and William Hague North Star mine,

Grass Valley

Painter Tramway Co., automatic rope lubricator

Palladium Its characteristics, uses, and discovery In the

Boss mine

Pan as regrlnder William S. Mann....

Motion concentration

Panama canal, cargo passed through 815,

Canal. Culebra cut, Bucyrus dipper dredges

Canal. Culebra cut slide

Canal, death rale Editorial . . . .

Canal, dredges

Canal, earnings

Canal, excavation

Canal, fender chains

Canal. Gatun lake watershed run-oft

Canal, labor employed

Canal, locks and currents

Canal, Mlndl explosion

Canal, power plants

Imports and exports

Resources

Panama Mining Co., Nicaragua, and Tonopah Mining Co..

578,
Panama-Pacific International Exposition Editorial....

And Michigan iron-ore districts

Bureau of Mines exhibit

Model mine

Ditto Editorial 168,

Paraffin wax. U. S. exports

Paraguav. imports and exports 792,

Park City Mills Co., Utah

Smelter

Parramatta sewerage works. Sydney. New South Wales,

pumping engines

Parsons Mining Co., New Mexico 533.

Patent law. Flotation and the Editorial. . . .

Ditto James M. Hyde ....

Patents. Recent 83, 165. 468. 623.

Peach pits and prussic acid manufacture

Peace prospects in Mexico Editorial ....

Peake. H. G Building a placer mining dredge with

electric power-plant in Portugal

Pearce. Gilbert, death of

Pearce. Jackson A Cyanidation of Clear Creek and

Gilpin County sulphides

Pearl, occurrence

Penn-Alaska Mining Co

Pennsylvania and Vermont metal production

Coal production 300,

Electricity in anthracite coal mines

Gas. natural, production

Mineral production

Petroleum production 36,

Portland cement production

Pennsylvania Railroad Co., steel rails

Pennsylvania Steel company

Perseverance mine. Western Australia

Persistence of ore at Kolar T. A. Rickard. . . .

Of ore at the St. John del Rey T. A. Rickard. . . .

Peru, banks closed

Bismuth production

Borax Consolidated. Ltd.. and Arequipa borax fields....

Editorial

Cerro de Pasco Mining Co

Copper exports Editorial ....

Copper production 120,

340
618
107

549

980

990
'.11;;:
468
964
847
815
168
300
693
529
67
340
768
964
260
223
792
798

780
787
889
445
256
903
693
796
386
660

608
819
586
728
862
454
668

522
532

153
38
428
65t
525
664
935
38
608
68
382
956
985
732
590

125
121
829
795

1'iii

Lams

Ml.

I", ti ..I. no.

Petroleum 1 I 1 1 .....

I'll "I, -Mil. [ |y,

'..I lomlnvo nun.
Silt sr 10 o.iu. 1 1. .11
Home tan. ,ii 11,. a,,. 1.

II,, Ml, II,, I I

Peruvian C Ildated Mining Co., Utah

i',t mine, » intarlo

r. I. i on ah., it. death ol

Petrolatum oil. and petroleum production ............

Alaska production

Albollne and petrolatu il

ce-l .01 1 -1 no 1 in, 1 ion . .

klltorlel. . . .
linn 1 ,,ll

California Industry

1 California production 19.:,

Ditto Editorial...,

California State miuIiik Bureau and water in ,,1111,1, is

editorial. .. .

California. Water In oil Bands Editorial ...

Canada, Alberta. Calgary li'-i-i

tda production

Colorado production

1 lutch East irnii-s production

Qallcla production

Gas. and brim- wells of Sau-Chuan, China

Thomas T. and M. C&rleton Read.

Germany production

Illinois production :,:M,

India production

India resources

Indiana production

Italy production

Japan production 686,

Kansas production 70S;

Kentucky production

Literature collection Editorial. . . .

Louisiana production

Map of U. S. resources

Mexico production

Mexico, Tamplco exports 788,

Michigan production

Missouri production

New Mexico production

New York production

New Zealand. New Plymouth district

Ohio production 661.

OH and gas Industry. U. S Editorial....

Oil and gas land. California legislation. Washington,
D. C

OH statistics

Oklahoma production

Pennsylvania production 664,

Peru exports

Peru production

Peru lands Editorial. . . .

Refining and sulphuric acid

Rumania production

Russia production

Tamplco crude oil shipments

Texas production 466.

U. S. Bureau of Mines division Editorial....

U. S. production 36. 924,

U. S. railroads fuel oil 4).

Washington. D. C legislation Editorial....

West Virginia production

Wyoming production

Phelps. Dodge & Co., Inc 122. 313, 458. 534. 97S.

And Black Diamond mine. Arizona

And Tombstone mines

Tin production attempt Editorial ....

Phenomena of adsorption

Philippine Dredges, Ltd., Philippine Islands. .159, 352. 570.
Philippine Islands, cement plant

Customs revenues

Cyanide supply

Development of gold milling in C. M. Eye. . . .

Dredging 23.

Gumaos Placer Co

Iron ores of Bulacan province 571.

Mamhulao Placer Co

Manila property valuation

Map. northern part

Map. southern part

Mashate mining

Mlndoro placers

Mines tax

Neutrality Editorial

Philippine Dredges. Ltd 159. 352.

Surigao province iron

Phoenix mine. Granby Consolidated

Phosphate. Egypt deposits Editorial . . . .

Idaho. Georgetown district deposits

Land bill

Montana, Elliston field

Rocky Mountain deposits. Origin of

Eliot Blackwelder. . . .

Phototopography J. A. MacDonald . . . .

Picher Lead Co., Miami, Oklahoma 654,

Plcking-up bottoms

Piegan-Gloster mine, Barnes-King Development Co., Mon-
tana

Pigg's Peak mine, Rhodesia

Pilot-Butte Mining Co., Butte, Montana 194.

Pioneer mine. Nome. Alaska

161
191

Mil

13 C

B
I
686

Tin

:.:::,

, 27
I

lull

935

'..:;:,
935
:.:;:,
nun
985

Sli

191
935
935
935

964

93.'.

ir,7
961
935
9.15
538
935
1
935
964
126
935
935

1012
460
28
Tim
451
8S9

1000
571
898

570

7<"

s:,:i

!'7T
571
570

24
571
570

21
359
S59
571
1; 1 :,

131

651

2i>S

1008

987

I'll-,

928

658

::::r,
461
907

MINING PRESS

Vol. 109

Page.

. ring In old countries Editorial. ... 587

- Mining Co.. liorkland mine, Nevada. .70, 659

irgh meeting of the A. I. M. E...

Editoral correspond. -me . . . . 588

silver statistics - -'. 739

Alaska decision Editorial 1

testing lames \\ . Nell!....

,.» Walter J. Radford 5, _'_'i

Thomas A. Graves. . - 991

- ing ground)
Mining dredge Building with electric power plant in

Portugal h. c. Peake S3

Mining in the Fairbanks district

Emit Kilward Hurja 965

Plan for reviving hydraulic mining — I. II

Haley. . . .91 1, 949

Frederic P. Dewey...

fornla production

i iiuiriy'B paleozoic

P. Krusch. translated by F. Sommer Schmidt.... 879

Bit In southern Nevada. Adolph Knopf. . 990

Nevada, Good springs district discovery 508, 576

246

fined '"i

"duct It'll 612

8 production 642

Plattevllfe, Wisconsin, ore market (see Wisconsin).

Plumbago, Ceylon 631. >> 1 1

Plunger pumps, improved 108

Plvmouth Consolidated Gold Mines. Ltd., California

39, 167, S46, 674. 855. 893, 930. 973

l>ltto An Occasional Contributor 329

Mill 699

Mill. Design of Geiaslo Caetani. . . . 670

Ditto T. Parke Channlng, J. H. Lewis. . . . 846

Pocahontas Lead & Zinc Co.. Missouri 113

Poisoning, lead 188

Lead, pottery Industries 529

Politics and business Editorial.... 4::

And mining men Editorial 431

Porcupine Aurum, Ontario, organized 421

Porcupine Crown Mines, Ltd.. Cobalt, Ontario

159. 267, 386, 819. 1004

Continuous decantation at... Maurice Summerhayes 88

Porphyry Dike mine, Montana 894

Portable assay outfit Theo. A. Clack. . . . 491

Porter porous mineral medium 367

od Canal Tunnel Co.. British Columbia 537

nd cement EJ. s production 38

Cement, Washington production 77

Portland Gold Mining Co.. Cripple Creek, Colorado

75. 157, 194. 231. 350. 423. 575. 658, 735, 931

Ports of entry. Mexico 809

Portugal and Spain copper production 120

Building a placer mining dredge with electric power

plant in H. G. Peake 522

Portuguese East Africa, Dredge construction

Charles Janln.... 177

Potash. Alsace-Lorraine production l">l

And the Geological Survey Samuel H. Dolbear.... 883

California. Discovery of Whitman Symmes.... 883

Oregon discoverv 577

Salts and war Editorial

Spain resources Editorial. . . . 431

Potassium cyanide. Magdeburg. Germany 567

Potrero del Llano oil well, Tamplco 504

Pottery, r. s. production

Pounds avoirdupois Into troy ounces 415

Power & Mining Machinery Co. and International Steam

Pump Co no

Power plant, steam, efficiency 924

Precipitation, electrical, Progress of Editorial.... 626

Precision of thought Editorial... 711

Ditto W. S. Prosser 885

PremleY diamond mine, Transvaal, graphite-coated dia-
monds 260

Present conditions at Ploche, Nevada. James W. Abbott.... i v :

Presidio Mining Co., Shatter. Texas, cyanidatlon 643

Pressures. Harvard University laboratory 188

Prestea Block A mine. West Africa 814. 955

Report and state of company 304

Preston, Edmund B., death of 579

Primrose mine. Alaska 312

Prince Consolidated Mining Co.. Ploche, Nevada 462, 485

Prince William Sound Mining Co.. Alaska 262

Probert. F. R Three R mine. Patagonia district.

Arizona 17 1

Problglo Mining Co., Idaho Ill

ind uses of tungsten O. J. Stelnhart. . . . 64

Of radium in America Charles H. Viol 44."?

Production statistics:

Alabama coal 634

Alabama coke 634

Ditto, l'. S. GeoL Surv 80

Alabama, Iron, pig 634

Alaska, gold 422. 590, 734

Alaska, minerals 820

Alsace -Lorraine, minerals 451

Arizona minerals. U. S. Geol. Surv 74

Arkansas, coal. U. S. Geol. Surv 80

Arkansas, minerals, U. S. Geol. Surv 664

Australia, bismuth 590

Australia, gold 198

Bolivia, bismuth 590

British Columbia minerals 346

British Empire oil 188

British Guiana, diamonds 650

British Guiana, gold 377, 650. 707

' 'a li fornla borax 567

; fornia, gas, natural Editorial.!!. 867

California metals. 1913 * 349

fornla minerals ' 929

1 UttO. T*. S. Geol. Surv " 501

• 'allfornia pitroleum 193. 383. 699. 855 929

Ditto Editorial 277

California quarry products 647

Page.
Production statistics:

California quicksilver, V. S. Geol. Surv 217

' da copper 689

Colorado coal 135

Colorado coke, U. S. Geol. Surv 142

Colorado metals, U. S. Geol. Surv 231

Colorado minerals. U. S. Geol. Surv 705

Connecticut minerals, U. S. Geol. Surv 705

Egypt, phosphate 431

Florida, phosphate, U. S. Geol. Surv 664

France, coal 184

France. Iron 184

France, steel 184

Georgia, minerals. L T . S. Geol. Surv 466

Germany, East Prussia, amber ;»24

Honduras, gold 955

Honduras, silver 955

Hungary, iron 552

Idaho, lead 618

Idaho, metals, U. S. Geol. Surv 231

Idaho, minerals 618

Illinois, coal. U. S. Geol Surv 466

Illinois, coke, U. S. Geol. Surv 80

Illinois, minerals 524

India, British, coal 17

India, gold 959

Indiana, coal, U. S. Geol. Surv 38

Indiana, coke, U. S. Geol. Surv 80

Indiana minerals 753

Iowa coal, U. S. Geol. Surv 80

[Owa minerals 450

Ireland, minerals 552

.la pan. petroleum 686

Japan, zinc Editorial. ... 167

Joplin district ores 351

Kansas coal, U. S. Geol. Surv 80, 248

Kansas, gas. natural Editorial. . . . 867

Kansas, minerals. U. S. Geol. Surv 705

Kentucky, coke 107

Kentucky, minerals, U. S. Geol. Surv 664

Maine, feldspar 648

Maryland, coal. U. S. Geol. Surv 236

Maryland, minerals 409

Michigan, copper 768, 816

Michigan minerals U. S. Geol. Surv 705

Minnesota, iron. U. S. Geol. Surv 664

Missouri, coal. U. S. Geol. Surv 38

Missouri, minerals, U. S. Geol. Surv 661

Montana coal 176

Montana metals, U. S. Geol. Surv 70S

Montana minerals, U. S. Geol. Surv 30

Nevada, metals, by counties. U. S. Geol. Surv 424

New Hampshire minerals. U. S. Geo] Surv 70S

New Jersey minerals, U. S. Geol. Surv 705

New Mexico, coke 10 1

New Mexico, minerals. U. S. Geol. Surv 76

New South Wales minerals 49

New Zealand, gold 198. 613

New Zealand, minerals 919

New Zealand, silver 618

Nigeria, tin 580

North Carolina minerals, U. S. Geol. Surv 705

North Dakota coal. U. S. Geol. Surv 80

Ohio minerals, U. S. Geol. Surv 664

Oklahoma, coal. U. S. Geo], Surv 184

Oklahoma, gas. natural Editorial. . . . 867

Ontario gold and silver 31

Ontario, minerals 117. 463. 858

Ontario, nickel S :» 1

Ontario, silver 891

Oregon, metals. TJ. S. Geol. Surv 195

Oregon, minerals, U. S. Geol. Surv 705

Pennsylvania, coal 300

Ditto, U. S. Geol. Surv i^

Pennsylvania, minerals. TJ. S. Geol. Surv 664

Peru, bismuth 590

Peru, copper 796

Peru, sliver 795

Queensland, metals 961

Queensland, minerals 56, 605, 616

Rand, gold 662

Rhodesia, gold 80S, 959

Rhodesia, Southern, minerals 459

Russia, platinum 642

Saxony, bismuth 590

Siberia, gold 144

South Dakota, gold. Black Hills 852

South Dakota, minerals 853

Spain, bismuth 690

Tennessee, coal, TJ. S. Geol. Surv 80

Texas, cement. TJ S. Geol. Surv 466

Texas, coal. TJ. S. Geol. Surv 80

Texas, gas. natural, TJ. S. Geol. Surv 4 66

Texas, metals 819

Texas, petroleum, U. S. Geol. Surv 4 66

Transvaal, gold 72.614, 1001

Union of South Africa, minerals 72

United States alloys 102

United States, aluminum, U. S. Geol. Surv 861

United States, antimony, U. S. Geol. Surv 861

United States, arsenic 648

United States, arsenic, white 562

Ditto. U. S. Geol. Surv 664

United States asphalt, U. S. Geol. Surv 664

United States barytes 412

United States barytes, U. S. Geol. Surv 348

United States barytes. crude 104

United States bismuth 590

United States borax 567

United States carnotlte 648

United States chromium. U. S. Geol. Surv 861

United States coal, U. S. Geol. Surv 200

United States coke 567

United States copper 120

Ditto. U. S. Geol. Surv 861

United States explosives 679

V..1 109

MINING PRESS

'.-• nunrapar 8 Oeol Sun

Maii-a mil. i » f«riii. i Burv

Editorial

.-.ii i
hi. r 8, Gaol. Sun
"Til states .

Surv

r B tieol. Surv. .

ri.lt.*. I Statva saa.

Inn

Inn ...;. ««,,.

I'nit.-.i stat.a ir..n. l.iu Editorial....

I11I1..I si„|,-i laad, I' s Qeol. Sun

I'nlli Surv

Inn lite. V. 8 Oeol. Hurv

United States niuuHi

Ditto, l'. S. U10I. Surv

United st.4t.-r* metals, eastern states, r s Qeol Burv.,

t 'ti 1 tu.i States mineral w.it.-r. r, s Qeol, Bum

United States minerals, per oent »-f tin. world

I'nit.'.l Stat. •« minerals, value

United State! oil nuil kuh Industry Editorial....

United State! ollaton. Qeol, Surv

I'nlt.-d Stntrs petroleum, I". S. CSeol. Surv 36,

Unltod Stat.M plutlnuui

itili.Ml States Portland cement, U. S, Qeol. Burv

Cnitod States pottery, S, Qeol. Burv

United States pumice, r. S. Qeol. Surv

rnlti-d Slalea quarry rock

United stut. h quicksilver, V. S. Gool. Surv L'17.

I'nlled Slnt.tl radium 443.

i'nlt.'.l Stati'» unit. I - . S. QaoL Surv

I'nlteil Slat, m sand an.l uravel

I'nltcd Statin alllva

United States silver. I', s. GeoL Surv

I'nlto.l St.it.s st.'.-l Ingots nnd castings, U. S. Qeol. Surv

T'nltfil States stone quarri.-s

rmti-d States sulphur, r. S. Geol. Surv Editorial....

United st.it. s tin

Ditto, I". 3 I'.iol. Surv

Vntted State! titanium. U. S. Geol. Surv

t*n!t,.,l States trlpoll and diatomaceous earth, U. S.

Bui v

United statis tungsten, U. S. Geol. Surv

I'nlted States uranium

United States vanadium and uranium, U. S. Geol. Surv.

United States zinc

Ditto Editorial

Ditto, I', a GeoL Surv 314.

Utah metals. U. S. Geol. Surv

V.-rmont minerals. U. S. Geol. Surv

Virginia coal, U. s. Geol. Surv

Virginia minerals, U. S. Geol. Surv

Virginia minerals, 1913 Thomas L. Watson....

Virginia rutlle

Washington minerals, U. S. Geol. Surv

West Africa, gold 217,

West Virginia, coal, U. S. Geol. Surv

West Virginia, gas, natural Editorial....

Western Australia, gold 2">. 499, 854,

Western Australia minerals

World, copper

World, g.dd 908,

World, petroleum. U. S. Geol. Surv

World, tin

Wyoming, copper. TJ. S. Geol. Surv

Wyoming, gold, U. S. Geol. Surv

Wyoming, silver. 1*. s. Geol. Surv

Progress and working costs, Tanganyika copper mines...

Robert Williams. .. .

In zinc smelting Editorial ....

Of electrical precipitation Editorial....

Progress Mines of New Zealand, Ltd.. South Island

Company report 466,

Costs

Prospecting on the upper Magdalena C. S. Haley....

What is the matter with? Charles Moore. . . .

T>itto Operator. . . .

Prospective growth In output of tin

Prosser. W. S Precision of thought....

Prussian blue and tea leaves

Prusslc acid manufacture and peach pits

Pueblo mine. Yukon

Pumice. United States production 38,

Pumping engines, Parramatta sewerage works. New South

Wales

Pumps. Humphrey gas

Plunger, improved

Purkeypile mine, Gold Hill district, Oregon

Pyrite, California production

Wisconsin. Benton district

111!

m;i

m.i

U-.

8*1

111

41:.
86
38

a 1 1

J 1 9
861
•■.is
138

21L'

691

M',1

711.-.

>-7
r, 17
861
861

236

-in
648
861
354
278
861
705
705

80
605
333
567

77
:i.-,r.

18
867
972
381
120
1001
935

15
117
117
117

487
469
626
144
614
526
404
257
107
333
885

sir,
454

612
929

608
108
108
116
929
970

Quarries. California

Production. Ireland

United States, men employed

Quarry products. Kentucky production

Products, Missouri production

Products, Pennsylvania production

Products, Virginia production

Quartz Creek Placer Mines, Idaho

Quartz mining in Dutch Guiana . '.

Rock. California production

Queen of the Hills mine. Meekatharra, Western Austra-
lia, company report

Thermit weld of broken crank-shaft

Queensland, Australia, gold production 19S,

Gore, limestone deposits

Gymple mining

Metal production

Mineral index

Mineral production 56, 605,

Quicksilver and war

California production 217.

Ores and flotation Editorial. . . .

647
553
219
116 1
664
664
605
735
810
929

706
594
616
380
616
961
73
616
347
929

QUI. ..

■

I.. I, illi,- nutuiiii |(y ,,f ti,, ,

1 nil
Usea

3ullp Qold Mining Co , Washington
inn. y Mini. ,t. Co , Ham ". Ii. Mb

II' ■
quo \ .i.iis miiir .ii founded, Nevada ...

Radford, W1.1t. 1 j Ifethode of t»»tinic plat

graveli

Bad In in hill

"iti,. Editorial. .

Hill in Ho

■ I ..t Mm.--. Denver Investigation!... Editorial.... n

Production tn Ainerloa »'h:trl<H 11. Viol..

United Btatee production

UHtiroiui. Alaska

Railways, United States, live per Qeni Increase in eastern

tory KUitnriui.

United States, fuel "ii

i>W 1 ► .•vt'lupm.lil i '..

Rambler-Cariboo mine, British Columbia 117

Rand, Charles i". .Sanitation work at Cuban Iron mines, . . . 118

Ami Order of Isabella Editorial . . 86

Rand banket, C. Baring Horwood replies to dim 11

Bain, ii. Poster

Draper 1 >

Gregory. .1. W 786, mi

Hatch, K. 11 :•:«.

Knox, Hook, and Lett 1st;

Llndgren, Thomas. Bain, and Hatch J'.<7

Mellor, E. T H8

Rtokard, T. A 158

Rand, cyanide consumption

1 Hist prevention on the, 1 :»

Earthquakes 148

Par Kast, d. vt-lnpiiKiit till

Figures for six months

Gold production 526, 662

Ditto Editorial.,.. 7^7

Hydraulic stowing in gold mines.. B. C. Gullaehsen . . . . 801

Impression of the 111

Industry of the Wltwatersrand

T. A. Rlckard. Editorial... J n

Labor

Labor problem Editorial .... 24 1

Life of Editorial 2 I 2

Mines 1 1 :

Modderfontein group of mines . 1 '■'•

Ore hoisted 864

Sanitary conditions on the Editorial ... ' 68

Rand Mines. Ltd., company report ::"7

Rathfon Reduction Works Co., Washington 233, 436, 587

Raub mine. Federated Malay States 842

Ray Consolidated Copper Co., Ray, Arizona. .122. 208. 313.

■127. 458, 694, 89S, !m;:i

Company report 269, B20

Rea mine, Porcupine, Ontario 123

Read, Thomas T...Lake Superior copper mining-, present

and future — I 871

Read, Thomas T. and M. Carleton ... .Petroleum, gas. and

brine wells of Ssu-chuan, China 629

Reading for culture Editorial.... 41

Real del Monte, Pachuca, Mexico 580

Real estate in London Edward Walker. ... H)

Recovery calculation formula 529

Of gold in dredging Charles Janln.... 717

Red Butte Mining Co.. Nevada 697

Red Ledge mine, California 114

Red Metal mine. Idaho Ill

Refinancing Natomas Editorial .... 2

Regrinder. Pan as a William S. Mann..., 963

Reinohl process Editorial. . . . *30

'Rapid cyanidlng apparatus' 423

Rejuvenating the ehloridizing roast

F. Sommer Schmidt.... 324
Relative natural and commercial scarcitv of the metals. .

Edwin C. Eckel 182

Release dates Editorial .... 940

Report of committee on revision of mineral land laws...

E. B. Kirbv. . , , 869

Of Selby Smelter Commission 947

Republic Consolidated Mines Corporation, Washington, in-
corporated 862

Republic Iron & Steel Co., Hartford mine, Michigan 596

Republic Leasing Co., Washington 233

Republic mine. Republic, Michigan, Method of mining. . .

R. B. Wallace. . . . :>2T>

Republic Mines Corporation. Republic, Washington 436

Present ownership 504

Reserve Board, United States, and Thomas D. Jones

Editorial 167

Respiration, artificial 765

Revenue mine, Colorado 931

Revision of mining law W. F. Collins. . . . 453

Ditto Clarence K. Colvln.... 106

Ditto C. J. Frv 21

Ditto G. L. Sheldon .... 259

Of mining law again Editorial. ... 201

Of mining law, proposed F. R. Ingalsbe.... 100

Of mining law, Report of committee. .E. B. Kirby.... 869

Rezende Mines, Ltd., Rhodesia 959

Rheostat resistance block, Graham 149

Rhodesia, amalgamation 188

Geological Survey report 71

Gold production 72, 251, SO*. 959

Small mines 4 1 5

Southern, mineral production 459

Rice, George S.. and L. M. Jones. .. .Explosion test at the

experimental mine ^Ti

MINING PRESS

Vol. 100

804

503
462

185

r.im

Page.

i da pulaator rlfh> 316

Rtckard, T. A As war looks in London....

320, 362, 394, 12 i. 172, r. 4 7. 868

Ditto Industry <•( the witwatersrand. Editorial. .. . 211

I M 1 to North Star, Grass Valley, Editorial. . . . 544

Ditto Persistence of ore at Kolar...; 956

. > * < t at the St. John del Key. . . . 985

niitM. . 1:. ,n.i banket, Horwood replies to tfsctmslon. . . . t^2

A Valley mine riuh 117

Rlftle, i 316

Right I nea ' '•>.. Ontario 779

ftlndgc. 1 r Fred H Big returns on an investment. ... 712

Rio Tim. * Co., Ltd., Spain 615. 773

k Farm and A. S. & R. Co 537

ier 430

natlng tiie chlorldlzlng

F. Sommer Schmidt.... 324

oratory 786

llobblns. Frank, death ol 78

R rts, •; g€ K, and National City Bank. .Editorial 710

1 ■ . ( ry, death of 695

...Methods of taking mill-head samples.... 183
Robinson Deep Gold Mining Co., Ltd.. Rand, sand filling

803.

>n Gold Mining Co.. Ltd.. Rand, company report...

Consolidated Mining & Milling Co., Nevada....

i is Mining Co., Nevada. 116.

• r .Mni'-s Cm.. Kast Rochester. Nevada

76, 116. 425. 462. 823, 1009

ESxtei 116

taver Mining Co.. Nevada 1009

And Mexican Gold A Silver Mining Co 462

Roohford-wyomtng Oil Co., South Dakota

Rock Don In new mining districts

C T. Brodrick

United States guarry production

Ro< k 1 ulnfnoj < :e„ « Oklahoma

Rockland mini Pittsburg-Dolores Mining Co.

Rocks, Ore deposition In and near, by meteoric

waters Andrew C. Lawson. . . .

Rocky Mountain phosphate deposits. Origin of the

Eliot Blackwelder 987

Roessler AH Chemical Co 826

nlde situation 86 J, 668, 694

tnlde manufacture Editorial.... 391

Austin ]■'... Secondary Bulphlde enrlchmenl oi
copper ores with special reference to microscopic

study 680

Roll shells, Steel James c. H. Ferguson.... 809

nel, < Solorado 194, 810, 884, 461. 777

Rope lubricator, Automatic 980

\\'h ameter 815

nduras, Central America

' ii-i <»r cianiiy -onipany. . .E. H. Leslie...

Ids, New Zealand 1004

pressor 624

l Mountain Mining Co., Nevada

Formed 233

Gold Mines Co., Angels, California 699

< irganu ei i

Royal mine, HLodson, California 1006

Royal mint Londoi requirement 378

production o»7

Ruby 1 i Mines. California 74

Ruhl, Ituatlon 920

Rale and Level, Combination 1 ket 542

u m production 935

iwn mine, Ketchikan district, Alaska to

Russia, alboll tro latum "U

Copper production 1 go

aging 971

971

Kyshtlm Corporation 77"

Lena Goldflelds sos

Map ol part 973

Mines ■• ■ t

<S 3 5

Platinum 1 1 1 B4fi

■ 1 n 'mi production 942

Slssert mine 772

saky Coppei Mine, Ltd 772

W8 gi 971

Ian Gold Mining Co., Siberia

Rutlle, Vlrgl lion ,\

Saeger charging machine

New York

| Mines. . .
Editorial

California Editorial

A Hecla

Arizona

mines. Lake Superior district

Mo* Ifornla

Editorial

lir, smart. islts!! . .

st Elmo Mining A Milling Co Coloi flo

Ltd., Brazil

.....'[

Iho mine '.'.'.'.',.'.'.''

Morro Velho mine, Persist

„, . , T. a_ Rlckard

Of air anil rock

Ltd ....*. 27

dins mine. Rotation on quicksilver ores.
^ t . r , „ " ! '»i- • • ■

! 10.. Missouri «

Holmes suit Ed

g A Refining Co,. Mlssotn

nine

1 1 f mi nia

.;-. 1
224

137
1005

360
239
942

617
608
930

243

461

■

985

575

889
981

808

Page.

Salmon River Power & Light Co., Washington 370

Salt. Alsace-Lorraine production 451

California production 929

Michigan production 705

Ohio production 664

Petroleum, and pas wells of Ssu-ohuan, China

Thomas T. and M. Carleton Read.... 629

Rock, Ireland production 552

United States production ' 4L'S

Salt Lake meeting of the Institute 301

Salvador, Central America, Butters Salvador Mines Co...

648. 798. 95:

Imports and exports . 79:'

Mineral resources 798

Salvador lease, Tintlc, Utah 117

Samples, mill-head. Methods of taking. .. Lloyd Robey.... 183

Sampling and assaying Cobalt ores 605

Mine 567

Sand and gravel, Oregon production 705

And gravel, United States production 212

And gravel. Virginia production 333

And gravel, Washington production 77

Killing in Rand gold mines B. C. Gullachsen . . . . 801

Filling, origin of Editorial 791

Glass, California production 929

Table. Delster double-deek 101 i

Be nd Queen mine. Western Australia 853

Sandstone, California production 929

Washington production 77

San Fran cisco mint, bullion received 389. 781. 910

Mint, operations ...80, 251. 353. 634

Sanitary conditions on the Rand Editorial .... 168

Sanitation work at Cuban iron mines. .Charles F. Rand.... 213

San Juan Metals Co., Colorado 822

San Poll Consolidated Co.. Republic. Washington 31. ",\

Mill. Republic. Washington 437

Santa GertrudlB Co.. Ltd.. Pachuca, Mexico 154. 889. 931

Company report 426. 782. 1010

Finance conditions 162

Isabel Mining & Milling Co.. suit. California 194

Santo Domingo, imports and exports 792

Resources 798

Santo Domingo mine, Peru, ore treatment 181

Saxony, bismuth production 590

Schmidt, F. Sommer Platinum deposits of Germany's

paleozoic, translated from P. Krusch 879

Ditto Rejuvenating the chlorldlzlng roast. . . . 324

Schumacher mine. Ontario 696

Scientific management In the German industries

H. N. Stronck 648

Scottish Gympie Co., Queensland 616

Graphite in ores

Scran ton mine. Utah

Scrap metallurgist Editorial . .

60S
117

Scraper, bottomless 954

Secondary enrichment. Laboratory study of .. Editorial ... . 433

Ditto C. F. Tolman. Jr 649

Sulphide enrichment of copper ores with special refer-
ence tO microscopic Study Austin F. Rogers.... 680

Seeking South American trade — a word of caution to home

folks Editorial 789

Bel by Smelting & Lead Co.. fume commission 930

And fume commission Editorial.... 939

Report of Selby Commission 947

Ditto Editorial 939

Ive mining of orebodles Douglas Waterman .... 54

Selling mining properties Editorial. . . . 628

Seminole mine. Georgia 953

Seneca-Superior Silver Mines, Ltd., Cobalt, Ontario

169, 660, 858

Setin < '"a. .-ntrating Co., pan motion concentration 468

S 1 Mining CO., Korea 77. 352, 426. 578. 779, 977

Servla, copper production 120

Seven Troughs Coalition Mining Co. Seven Troughs. Nev .

31. 351. 425, 503. 619. 778. 894. 1009

Seward Bonanza Gold Mines Co 341

Shaft timbering. Mesabi range, Minnesota

P. B. MacDonald. . . . 690

Shamva Mines. Ltd., Rhodesia 72, 265, 808, 919, 959

Shanghai Dock & Engineering Co., Chinese mechanics. . . 729

pper Co., Metcalf, Arizona. 122, &08, 348, 165, 501, 530

Company report 269, 792. 1006

Shan tun p Min'ng Co.. Kiaochow, China 460

Sharp mine, Utah 117

Copper Co.. Blsbee, A rlzona

122, 208, 813, 572, 694. 698. 892, 1006

Sheave, well guarded 882

Sheldon, G. L Revision of mining laws.... 259

Ships. American-owned foreign, and freight situation....

Editorial 317

Government-owned merchant Editorial. . . .

Shockley, W. H Gold mining on the Amur.... 249

stamp-battery as dies 496

tube-mills. H. W Hardlnge 218

Shoveling machines at Flat River E. H. Leslie.... 809

Showers mine. Utah 117

Sia*n, wolfram production 758

Siamese Tin Dredging Syndicate 16

Siberia. Gold mining on the Amur....\V. H. Shockley.... 249

Gold production 114

Orsk Goldflelds, Ltd 686

Upper Yenesei vallev and adjacent Mongolia 687

Ditto Newton R. Knox .... 922

Slderlte and sulphides In LeadvlUe ore deposits — T. II

Philip Argall 50, 128

And sulphides in Lead vl lie ore deposits, a correction..

Philip Axgall 14S

Siebenthal, C. E Midyear spelter statistics... 314

Ditto Zinc situation. ... 354

Nevada Consolidated Mining Co.. Idaho 350

Silica. United States production 692

Silver, Alaska production 820

Aluminum alloy 415

Amalgamation of ores 300

And gold alloys 188

And gold, Weighing minute spheres of. .J. I. Blair 526

Vol LOS

MINING PRESS

Silver and w . It]

lion
Hulllu ipaell) 110

«05
705
II*

».-.:.
Ill

rtlon ..!«».

InplInK on.) UH)lli|l
i tl.-ll

.Ml,

.til,

■hi .tat,-, production
Honduras production
Idaho production

..I ore.. Smelting cost! anil prior* tol

I. B An. iin 170

\i.irk.-i condition! 160

Montana production 30

. i.i production 42 1

\. u If .vi... production

Nt vv Bealaad production lis. 919

Ontario production ji. i it. ««.i. *:■■

- in production 198

and mt'talllrs 651

Porn production

S3. 7», lit,

161. 197. lit. 274. 313. 363. lit, (30. 680,

Oil. 66'.'. 701. 711 III lit, 114, »78, 1011

vv.u Editorial . . . . 31"

■"i.iini production 961

Relative rmturai and commarclal scarcity <<( the metals.

Edwin C. Soke] ... 182

Ldor exports 648

Shipments Bit

>i mil

Texas production , 819

Unlt>-,1 Statee export! anil Import* 239, 5*0. 114

rniii-.i statca production 861

Utah production 705

Washington production 77

Wyoming: production 117

Silver Cable mine. Mu]]..n. Idaho

Silver King claim. Yukon 87, 537

Sllv.-r King Coalition Mine* Co. Utah 463. Ill, 1010

Company report 159

Electric holel 390

v Silver King Consolidate,! Mining Co.. Utah 702, 1010

Silver King Consolidated Mining Co.. Park Cltv. I'tah

233. 463. 824, 101

Solon Splro and shareholders 620

v Silver King Coalition Mines Co.. Utah 7"2. 1010

Silver Lake mine, Colorado 384

Silver Pick Consolidated Mines Co.. Nevada 310

Simmer & Jack Proprietary Mines, Ltd.. Transvaal 901

Sand lining 803. 804

Simmons, Jess,- Electric power at llnmestake. . . . 374

Ditto New Reliance milt practice, with par-
ticular reference to continuous decantatlon 722

Simple mine accounts 60

Simplification of gold ore treatment. .Noel Cunningham. ... 19
Sintering ores, Muntlngton-Heberlein v. Dwlght-Llovd pro-
ceases 37s

Slsserl Estate mines, L'rals, Russia 772

' tompany report 224

- '-Whit. Horse mining district

Emll Edward Hurja.... 609

Ske.n-Lechner property. Alaska 342

Slag, cyanide. Crude method of disposing of

Arthur Feust 142

Notches, Melting out 994

Slate. Virginia production 333

Slime concentrator. Anaconda 238

Settlement and water viscosity 608

Slings .and other hoisting accessories, storage of in mines. 415

Small stamp-mills 863

Smelter fume litigation (see fume)

Lampa copper. Santa Lucia. Puno. Peru

Francis Church Lincoln.... 553

tagement of a country Editorial.... 431

i'itt" Herbert Lang.... 440

1 >!-•■ contracts and the Herbert Lang. . . . 492

Smoke. Utah, new decree Editorial.... 865

Wales -/Inc. plans Editorial. ... 981

Smelters. European countries 354

Smelting. Colorado Editorial.... 941

Copper, in Canada 689

Costs and prices for silver-lead ores . . . . L. S. Austin.... 170

Electric, of iron ore. Fluorspar In

Robert M. Keeney. ... 335

Japan Editorial 359

Low-grade flue-dust 300

Zinc, England 304

Zinc. Kansas and Oklahoma 530

Zinc, practice of Middle West

E. H. Leslie 44. 136, 204. 280. 395. 475

Zinc. Progress In Editorial.... 469

Zinc-retort 300

Smith. George Otis, and American Institute of Chemical

Engineers. Philadelphia 906

Smith. Warren D..Talsho national exposition at Tokyo.... 490

Smlthsonite, English and American meanings

Editorial 940

Wisconsin. Platteville district 693

Smokestacks, brick, cracking and weathering 149

Sm.-ot. A. M Gold and silver ores and metallics. . . . 651

Smoot silver bill 353

Smuggler-Union Mining Co.. Colorado, flre 777

Welfare work L. F. S. Holland 747

Snake Creek tunnel. Utah 352

Snow Flake mine. New Mexico 775

Snowstorm Mining Co., Larsen. Idaho 76. 350

Company report 236

Soapstone. California occurrence 919

California production 929

Virginia production 605

Socorro Mining & Milling Co., New Mexico 733. 890. 932

Soda. California production 929

Sohnlein. M. G. F Economical sliming in

grinding pans 692

Solution control in cyanidation A. W. Allen.... 527

Solution control in cyanlggtlon i: M Haml

nldlng, Titration result! and

Ultra! It I.
• nllltiK dump. In the I'rruvlnn And.-.

II. .w iitii. i Bancroft
8on« of I'.waiin Leonora, Western Australia...

166. 183, 49», II
South Africa, diamond mining ...
KulnliKa mine.

South America, Coppei Syn

and foreign capita i .
Trade del elonment with .

I'ra.l.. po.Nlliilltlc. In
I'll!

Editorial

Editorial.

Editorial
Editorial revlea

. ; v.

Trade, Booking a word ,,f caution to home folk.

Editorial

Sooth Australia lc.,1,1 pi OdUCtlon

Sooth i ■ ,i ,,ii n a metal production

South Dakota, amalgamation mil).

.v 0,1,1 Bnalnas! Club, Heidelberg proporty

Qold production, nia.k mil* ,.

lllll City tin

Mills, potassium and sodium cyanide consumption

Mineral production

Mineral production, Hhok Hill.

South Beds Mining Co.. Alia, Utah

Company report

South Kalgurll Consolidated Mines Co., Ltd., Western Aus-
tralia

South Utah Mines & Smelt, -is. Ncwhou.e. Utah

Southern Montana railway 459.

Spain anil Portugal copper production

Bismuth production

Mining In

Potash resources Editorial. . . .

Sin- Iters

Spanish-American Iron Co., Cuba.. Sanitation work

Charles F. Rand

Spnssky Copper Mine, Ltd.. Siberia 122.

Specie movements

Spelter manufacture and properties. . .George C. Stone....

1 See zinc)

Sprague Electric Works, electric winch

Springfield Tunnel & Development Co., California

Springs mine. Rand

Square-set ore chute

Stabilization of the copper market C. S. Burton. .. .

Ditto L. Vogelsteln. . . .

Stamp battery, king-posts

Battery shoes as dies

Milling, Large versus small stamps Editorial....

Milling, screens

Milling, Steam stamps from the gold miner's point of
view

Mills, curiosities In

Milts. Improved cam for Arthur B. Foote....

Mills. Small

Stamps and tappets

Large versus small Editorial....

Steam, from the gold miner's point of view

Algernon Del Mar.... 513,

Ditto H. W. Hardinge

Standard Chemical Co radium production

Standard Silver-Lead Mining Co., Ltd.. New Denver, British

Columbia 77, 117. :iifi. 4 26. sot.

Stanford F. E Electric hoists In the Cleveland-
Cliffs mines

Star Silver Lead. Idaho, v. Forest Service. ... Editorial ... .

State geologists Editorial ....

Status of the metal market Editorial ....

Steam power plant efficiency 924,

Stamps Editorial ....

Stamps from the gold miner's point of view

Algernon Del Mar. ...513,

Ditto H. W. Hardinge....

Steel, Donald Valuing placer ground....

Steel. France production

Ingots and castings, United States production

Rails, Pennsvlvania Railroad Co

Roll shells James C. H Ferguson. . . .

Steinhart, O. J Production and uses of tungsten....

Steptoe smelting plant. Nevada, lower-grade flue-dust

Stewart. C. A Study In applied geology. . . .

Death of

Stewart Bros, mine, Alaska

Stewart Mining Co.. Stewart. Idaho 77. 350. Cm, 658,

And Heinze shares

Company report

Fight for control

v. Bunker Hill & Sullivan

v. Ontario Mining Co., Idaho

Stocks and war

Stone. George C... Spelter manufacture and properties....
Stone industry, California production

Oregon production

Quarried. United States

Virginia production

Stoping. Michigan method

Storms. William H Eruption of Mt. Lassen ....

Stout, V. A. . .Hardinge hall-mills and cemented gravel. . . .

Straits Trading Co., company report

Stratton's Independence, Ltd.. Cripple Creek. Colorado

75. 231. 423. 575, 658, 735, 822. 931,
Strike. Butte, Montana

Lake Superior district, cost of militia

Stronck. H. N Scientific management of

German industries

Study In applied geology C. A. Stewart

Suan Mining Co., Korea, Geological report on the Collbran

contact D. F. Higgins

Success Mining Co.. Ltd.. Wallace, Idaho

Sugar refining and bagasse

Sulitjelma. Norway

Sullivan Machinery Co. air-compressor, motor-driven port-
able

Auto-traction drill rigs 84,

789

III

IS]

100*

4 63

pi in

IJn

510

I :l
351

213

77:

754

276
194
112
768
7 ..■•
346
1 19
496
61 i
878

:, 1 ::
7 0s
955
863

5 67
51]

963
884
443

1010

446
903
S19

2)li
964
509

963
884

845
184

7i>:.
60S
809

64
800
330
505
::ll
'.::i
310
350
190
7:::.
124
65!
77 1
929
TIL".
765
333

IS
1 13
430

ions
57 2
117

618
330

95
350

S17
l.,7

666
328

MINING PRESS

Vol. 109

Page.

SulUva |W

pany 828

"Water piston' drill 876

Sulphide an-! Illfl ore deposits — I, II

Philip Argall 50. 128

And slderlte In Leadvllle ore deposits, a correction....

Philip Aryan 148

Enn ry. Of copper ores with special ref-

:« to microscopic study. .. .Austin i i 680

tment at Tuanml mine, Western Austral!

! arsenic process for treating 149

i poratlon. Central Zinc Co 304

Sulpho- cyanides In cyan Idat Ion Hit mi R. Layng .... 481?

Sulphur oil 188

iuctlon editorial 87

posits of southwestern. ..Clyde M. Beckei ... 386

United Slates prod tict Ion Editorial. .. . 87

White Island deposit Editorial. ... 903

W. D. llornaday. . . . 913

nd petroleum refining 964

Suroltoma mine. .Japan Editorial... . 359

Summei ifs urlce tion at

the Porcupine Crown mines

Sun and earth, masses of . . .". 22

Sunbeam mine. Utah J 17

Sunnyslde mine. Sherlock, California 74

Bunnyslde Mines, Eureka, Colorado 461

Sunset Mini n Nevada 619

Superior A Boston Copper Co., Copperhill, Arizona

114, 229. 268

Com pa n - report 973

Pittsburgh Copper Co.. Arizona 572

Superior Copper Co., Michigan 232, 266. 736. 857

Swansea Consolidated mine, Utah 1 1 7

Sweden and Norway copper production 120

Mining;, and war

switch, oil. New high- voltage 166

Switzerland, South American trade 792

Pydvaranger property, Norway 924

Symmes, Whitman Discovery of California potash.... 883

ds Brothers Co.. disc crushers 708

Table, sand. Double-deck Deleter

Tailing, cyanldatlon, victoria. Australia

row treatment at Hunker Hill. .Frank Lawranc*

lumps In tin Peruvian Andes, Some

Rowland Bancroft ....

Willow Creek district, Alaska, Cyanldlng

J. T. Terry. Jr. . . .
Talsho national exposition at Tokyo .. Warren I >. Smith....

apstone, ; . I ■ ■ iductton

Talisman mine. Karangahake, New Zealand 614,

rack &• Cust< lated Mining Co., Idaho

Tamarack Mining Co., Calumet, Michigan

i 82, 656. 817.

Tanganyika Concessions. Ltd., Progress and working
Tanganyika copper mlnei ..Robert Wllllaim

d si a tups

Taquah Mining & Exploration Co., Ltd., Wesl Africa

217, SI I.
i. dredging

Gold production

Hydro-Ele< ei & Metallurgical Co

Ml. Lyell mine 808.

Tin mining In James B. Lewis....

Tauplrl Coal Co., New Zealand

Ralph's mine explosion

Taxation, mine, and the conference of tax officials

H. A. E. Chandli r
Mining and co-operation of mining men. .Editorial ... .

Taxes, Getting land for, In California

Tea leaves and prusslan blue

Teck-Hughes mine. Klrkland Lake, Ontario. .. 233. 696, 970.

And Nfpisstng

Telephone, 'wireless,' Fife Coal Co.. Scotland

Temlskaming & Hudson Bay Mining Co.. Cobalt. Ontario..

117, 159. 196. 702. 738. 779.

Temlskaming Mining Co., Ltd.. North Dome property

Temperature, deposit formation

Tennessee, coal production

Metal production

Tennessee Coal. Iron & Railroad Co.. Birmingham. Ala-
bama, mosquito elimination

Tennessee Copper Co., Copperhill. Tennessee

122. 208, 311. 458. 895. 969.

Tennessee mine. Chloride. Arizona

Terry. Jr., J T Cyanldlng tailing in the Willow Creek

district, Alaska

Teeors mine. Utah

celestlte deposits

Cement production !

Coal production

, natural, production

Tehthyol 779

Iron

Iron its ..........'.'.'.'

Mint ....!!.!!

Mineral reference book 1!

Mlnln

ictlon .86, 466

Fortland cement production

after, Cyan id

Sulphur

! n . .Clyde M. Becker! ! '. '.

Thawing frozen gravel, Yukon Gold Co

Thermit weld of broken era

Thistle-Etna Gold i , ,

Thomas. Klrhy..! Htorwdbd replies to discus-
sion

1014
567
918

805

989
4 90

1003
350

874

487

E67

9 5 5

693

198

876
65

1002
765

^::s
831
634
815
1004
846
108

896

267

601

978
1006

989
117
927

466
80
166

f >-::

927
927
819
466
577
818
9 :: -.
38
648
927
296
668
594
969

554
106

174

■

702

.
180

Page.

Thompson, William B., activities 151

And Federal Reserve Board 1002

Thompson-Quincy Consolidated Mining Co., Park City,

Utah B24, 895, 1010

Thomson. II. t;., and 11. A. Morrison Operation of the

1 filter in the Globe mill

Thornhiil. Bryant K Value of dredging ground ... .

tagonla district. Arizona. P. R. Prober t. . . .

Thuni process, bismuth und copper separation

Tiffany turquoise mines, New Mexico

Tightner Mines Co., Alleghany, California

Timber Butte Milling Co.. Butte. Montana 461,

Timber Humes

Timbering contest. Blsbee, Arizona 114

Tin and war 347. 701

Australia deposits map *;."< I

Bolivia deposits Editorial ... .585. 791

Building a placer-mining dredge with electric power-
plant In Portugal H. G. Peake... 522

Domestic production. Attempts at Editorial 790

1 hjtoh East Indies production

England smelting Industry and war 119

lerated Ma lav States exports B44

Federated Malay States industry 388

i rated Malay States Industry and Australian Jam.. 15

Federated Malay States, mining in the

E. J. Vallentlne 178

German Southwest Africa exports 299

In the United States Editorial.... 170

Mining and reduction and writers 651

Mining at the Brlsels, Tasmania 248

Mining in Tasmania James B. Lewis. . . . 65

Nigeria production

Prices.. 34. 35. 80. 120. 161. 198. 199. 235. 274. 313. 353. 887,
388, 427, 465, 539. 540, 580, 622, 704, 739. 740. 781, 826,

860, 898. 899, «934. 978. 1012

Prices and war

Prospective growth in output of 333

Queensland production 961

Relative natural and commercial scarcity of the metals

Edwin C. Eckel 1S2

Transvaal and low prices 500

United States imports 647

United States production B61

Western Australia production 381, 647

World production

Tlntlc Coalition Mines Co., Utah, formed

Tintlc Standard mine, Utah

::;
117

Tires and motors 567

Titanium Editorial.

983

6nr,
217
808

•519

394

TOG
501
191
929
15
15

1009
7-1s
577

1009
536
701

United States production 861

Titanium Alloys Manufacturing Co Editorial.... 983

Tltantlc Gold Mining Co., South Dakota company report.. 267

Titration results and solution control In cyanlding

Haral R. Layng.. ; .

Results in cyanidatlon A. W. Allen..*..

Titus chlorlnation process

Tolman, Jr.. C. F Laboratory study of secondary

enrichment

Tomboy Gold Mines Co.. Ltd., Colorado. . 231. 461. 658, 700,

773. 822.

Company report

Tombstone Consolidated Mines Co., Arizona

And Phelps, Dodge & Co 28,

Tom Reed Gold Mines Co., Oatman, Arizona .. 114, 460, 734.

Tmm'kiili compound. N. L.. Victoria, Australia

Tongkah Harbor Tin Dredging Co., N. L., Tasmania

Tonopah Belmont Development Co., Tonopah. Nevada. . . .

116, 159, 351, 385, 425, 462, 503, 577. 622, 659. 702, 737,

779, 823, 895, 898, 97S,

Surf Inlet mine, British Columbia

Tonopah Cash Boy Consolidated Mining Co., Nevada

Tonopah Extension Mining Co.. Nevada 31, 68, 76, 116,

159, 232, 311, 351, 385. 425, 577. 619, 702, 737. 823, 895.

932,

And Tonopali Mining Co., Nevada

Tonopah Merger Mines Co., Nevada 31.

Company report 706

Tonopah Mining Co., Nevada 31, 159. 232. 311. 385, 503,

539. 659, 702. 737. S23, 976. 978. 1009

And Panama Mining Co., Nicaragua 732, 780

And Tonopah Extension Mining Co 536

Nicaragua property 578, 1011

Reno mine-rescue contest 455

Tonopah Placers Co.. Colorado 157, 735

Breckenrldge dredges 618

Toronto, Ontario, harbor, sand 30m

Torpedo-Eclipse property, Colorado 350

Tough-Oakes. Ltd., Klrkland Lake, Ontario

31. 159. 233, 267, 660. 696.

Trade Commission

And mining Editorial. . . .

Trade, Developing foreign Editorial ....

Foreign Council Editorial....

Possibilities in Latin America Editorial review ....

Ditto G. W. Wepfer

Tramway, aerial, Venezuela

Locked coil wire rope 1001

Transvaal and Rhodesia Estates, Rhodesia 969

Gold mines and war 946

Gold production 72. 614, 1001

Johannesburg rainfall 1001

Production of companies 910

Tin mining industry and low prices 500

Traylor Engineering & Manufacturing Co., Anaconda slime

concentrator 23S

Treadgold placers 848

Treasure Mining & Reduction Co. foreclosed, Mogollon,

New Mexico

Treatment of sulphide ore at the Yuanmi mine, Western

Australia

Trego, Frank H.. Accident prevention v. compensation

Trethewey Silver-Cobalt Mine, Ltd., Cobalt, Ontario

159, 702, 1010
Trlfonoff and Gardner process, sulphide ores of antimony

and arsenic 119

658

2 79
£78
168

; g 2

B85
964

97 6

995
691

Vol 109

MINING PRESS

osolldat* d Co

rrlnltj Cmllfornlu

■

produ. t

■

reduction .

l j
M -
Ditto u i-i inc« Catlln

Llnei \. u , , ; _m m , |

\V It Ulvtli

it w Hardin

i ublni r.-i boilers j]

California, San Bernardino oounty

England and war lit

Production anil uses of Stelnhart...

South i takota production

Unit, production

Tuniifl. Hooaao, Inlying, and it II taught

P, is McDonald. ...

Tuolumne Copper Mining Co

Tuolumn« Deep Channel Mlninn Co., California

Tuolumna mine, Montana ., ,<>

Turkey, copper production 120

Turner »»U Co., California

Twin City Mining Co., Missouri ;;i

Tyee Copper Co., Lad yam I th. British Columbia 70, 688

Type, email 'Rolling Stone'.... is;

i tuii i . , Bingham, ■ I

Ditto

Editorial

Sunday holiday
Utah Fuel Co . <M. ai Cre« k mil ■

centrntlng Co Utah

Mil. inn Co., mill, I ■ lor, N..i tn c

An.ii . w Wall

3:1

Umarl Gold, Ltd., Philippine Is lands :>:«i

Uncle Sam mine, Utah 117

Underwriters Land Co., Joplln, Missouri 458

Union Baa In Ulnlng Co., Arizona 229

Union Consolidated Ulnlng Co.. Virginia City, Nevada. 385. 1009

Union Conatruotlon Co., new portable drill 624

Union Hlii Mining Co, California 584

Union of South Africa mineral production 72

Unions, tabor i.rid liberty Kdltorlal. . . . 625

Labor. Butt**. Montana 189

Labor. Huti.. ami mining companies Editorial.... 481

United Copper Co.. Chewelnh, Washington 687, 660, 933

United Globe Mines 6s

Unite. 1 Gold Mines Co., Cripple Creek, Colorado 75

W. P, H. mine 535

United Ulna Workers of America and Western Federation

of Miners 576

Ditto Editorial 1 25

United Ore Sampler, Utah 117

Tutted States Bureau of Mines — See Bureau of Mines.

United States, foreign trade Editorial.... 239

Industries 024

Mineral products imports 524

Mineral reserves and war Editorial .... 391

Production statistics — See production statistics.

South American trade 792

Tin in Editorial 470

United States Geological Survey field men and identification

cards Editorial. . . . 667

'Mineral Resources of the United States' and Congress"

appropriation 109

'Our Mineral Reserves — How to Make America Indus-
trially Independent' Editorial. . . . 391

Potash and the Samuel H. Doibear 883

Production statistics — See production statistics.

United States Metals Refining Co.. nodulizlng flue-dust... 223

United States Smelting. Refining & Mining Co... 122, 530. 8S9

Alaska Ebner property 153

Needles Mining & Smelting Co.. Arizona 1006

United States Steel Corporation, Michigan iron-ore dis-
tricts and P. P. I. E 889

United Tintic Mines Co.. Silver City. Utah 117

United Verde Copper Co., Jerome, Arizona 122, 269

Copper Giant mine 534

United Verde Extension Mining Co.. Arizona 534, 657

United Zinc Co.. Joplin. Missouri 457

Sludge plant 535

Upper Yenesei valley and adjacent Mongolia

An occasional contributor.... 687

Ditto Newton B. Knox 922

Upper Yukon: Circle City, Eagle, and Woodchopper

E. E. Hurja 887

Uranium. United States production 648

Uruguay, imports and exports 792

Mineral resources 796

Use of herringbone gears to drive Hardinge mills 759

Of link-belts 40

Utah. Bald Hills gold district strike 272

Bingham Canvon lead 191

Fortuna gold district 620

Great Salt Lake salinity 567

Low-grade ore treatment 25

Map 895

Metal production 705

Mines dividends 824

Mining and metallurgical industries exhibit 702

Mining In D. C. Jackllng 301

Mining industry 824

Ozocerite 693

Park City mines 824. 1010

Park City mines bournonite occurrence 463

Portland cement production 38

Salt Lake City Stock Exchanga 976

Silver-lead ores, smelting costs and prices

L. S Austin. . . . 170

Smelter smoke decree Editorial.... 865

Snake Creek tunnel 352, 426. 620, 779, 976

Tintic district mines 77, 117. 386. 660, 895, 976

Utah-Apex Mining Co.. Utah 933

Company report 273

Utah Consolidated Mines Co.. Bingham, Utah.. 68, 154, 195, 208

Valdei Creak Placet U \iu«ka ise

v.ii.i..- Creek Power a Ml nee ■*..

Vallentlne, B. J Tin mining "> the Federated Ifalaii

States

Valuation of dredging ground j

Ditto ii n Herrlok

PJ5JO C. s. Kersla ...

Ditto L .1 Mohl. . . ,

, " 11( " B. Bryanl Thornhlll

\alulng placer ground R, c Jenntnge.. .

Ditto Don

Vanadium and uranium. United States production,

undy alloy

Van Roi Mining Co., Ltd., Sllverton, British Columbl

Van Ryn Deep, Ltd,, Rand

Veins, True fissure w. Prince Catlln....

Vemllla mine. Nevada

Venezuela, aerial tramway

Imports and exports

Mineral resources

Mining In

Ventilating fan. New

Ventilation in the Iron mines of the Lak.- Supei loi d1 trl

Edwin Higgins. . . .

Vermont and Pennsylvania metal production

Mineral production

Vernal Mining Co., Goldfield, Nevada

Victor and Glasgow claims, Idaho

Victor lease, Tintic, Utah

Victor Power & Mining Co. and Midas Mining Co.... 194,

Victoria, Australia, dredging 220, 529,

Dredging and hydraulicklng

Gold production

Melbourne district, map of

Tailing cyanidation

Victoria Copper Mining Co., Michigan

Victoria Consolidated Mining Co., Eureka. Utah

Victoria Falls & Transvaal Power Co. v. Langlaagte Con-
solidated, Rand

Victorian state coal mine. Australia

Victorious mine, Ora Banda. Western Australia

Village Deep. Ltd., Rand 228

Village Main Reef Gold Mining Co., Ltd., Rand, earth tremor

Vindicator Consolidated Gold Mining Co., Cripple Creek,

Colorado. .75, 231. 270, 423. 535, 575. 618, 700, 894, 931,

And Granite, Colorado, v. Teller county

Compressor

Mill Horace F. Lunt

Vinegar Hill Zinc Co.. Wisconsin, new development

Viol, Charles H Production of radium in America. . . .

Vipond Porcupine Mines. Ltd., Ontario 703,

Financing

Virginia, coal production

Manganese deposits

Metal production

Mineral production

Mineral production, 1913 Thomas L. Watson....

Rutile production

Virginia-Louise Mining Co.. Pioche. Nevada

Viscosity, water, and slime settlement

Vogelstein, L Stabilization of the copper market. . . .

Vogelstein & Co., L., tin statistics

von Bernewltz. M. W Blasting by wholesale....

Vulcan Detinning Co., company report

Vyver, Francis, death of

Wade, W. Rogers. .. .Mining district of Pinos Altos. New

Mexico

Wages, Russia

Wagner-Azurite Copper Co., Nevada 536,

Waihi Consolidated and Waihl Reefs, New Zealand

Waihl Gigantic Reef Consolidation. Ltd

Waihi Gold Mining Co., Ltd.. New Zealand. . . .366. 613. 815.

Company report

Ore treatment

Transmission line

Waihi Grand Junction Gold Co., Ltd., New Zealand. 366. 613.

Company report

Electric power

Ore treatment

Waihi-Paeroa Gold Extraction Co., Ltd.. New Zealand,

company report

Waihi Reefs and Waihi Consolidated, New Zealand

Walotahi mine, New Zealand

Waldorf Consolidated Mining Co., Colorado

"Wales, zinc smelter plans Editorial....

Walker. Edward Real estate in London ....

Wallace, R. B Method of mining at Republic mine.

Republic, Michigan

Walz. Andrew. . . .Uwarra mill. Candor, North Carolina. . . .

Wanakah Mining Co.. Colorado 350, 822, 931.

Wander Gold Mines, Ltd.. Rhodesia

War and antimony 369,

And Calgary, Alberta, oil boom

And California mining

And Cobalt mines

And code addresses Editorial ....

And copper mining in United States

And copper shipments 530,

193
106

M.'.
861

....

I?7
1 12

....

648

i..' I

158

111
117
280
898
928
198
73
567
268
117

73
952
697
307
964

974

158

s;:7
157

443
733
573

80
605

:is

605

33 3

567

4 si;
r.us
845
86
646
B26
126

402
971
696
1003
613

i mi-
les

180
149
1003
275
260
212

782
1003
614
461
981
414

921
1007
959
732
386
379
345
709
382
615

MINING PRESS

Vol. 109

Page.

irnleb tin mining r.;jL'

And cyanide supply Editorial 391

And gold mining, Porcupine 733

And Honduras mining 956

d Lake Superior copper mines 531

And LeadvlUe district, Colorado 120

And London Metal Exchange lit*

And manganese Bditorial . , . , 278

And magneslte Editorial. . . . 940

And metals

And mi new Editoi i I

And New Zealand mining 1002

And nickel, Ontario m ■

An.l ; us Editorial

And relief of American citizens in Europe. Editorial

And, silver 382

And Swedish and Norwegian mines 591

And tin 7<H

And Transvaal gold mines 5 I ■;

667

39 i
282

868

600
888
876
144

And United States business outlook Editorial..

And I'nlted States foreign trade Editorial....

And United siatns mineral reserves Editorial ....

And sine situation 36 i

Aa it looks in London T. A. Rtckard.

362, 394, 431. IT:'. 647,

As seen In France 54

< 'ontrabands

Effect on Lake Superior copper district 4 1 s

Effects In Australasia Editorial. ... 171

England and copper export problem 580, 616. 781,

772, 827, 926, 969, 1012

Ditto Editorial

European lessons Editorial.... 643

KS and 662

Zinc. Broken Hill 419

tpper Co., Globe, Arizona 229

Wasatch Mines Co.. Alta. Utah 77:'

Tire 463

Wash-houses, Illinois coal mines 886

Washington, D. C., Alaska coal-leasing bill 615

Leasing bin 615

Mining legislation 308, 421, 4 98. 65-'. 927, L002

Mining legislation and war 571

Petroleum legislation Editorial 126, 191

Washington, mineral district 577

Mineral production 77

Portland cement production

Republic mines 737. B96

Republic mining and milling E. C. Morse. ... 4 3.^

Ruby district 896

United States Geological Survey map 895

Washington Water Power Co., Washington 77

Power-lines 619

v. Marsh Mining Co 822. 1008

Washoe mine, Montana, Waste heat steam generation... 340

Wasp No. 2 Mining Co., Lead, South Dakota 463, 702, 862

Waste in mines 496

Water viscosity and slime settlement 608

Waterman, Augustus, death of 977

Waterman, Douglas .... Selective mining of orebodies. . . 5 t
Waters, meteoric, Ore deposition in and near Intrusive

rocks by Andrew C. Lawson ....

Watson, Thomas L. Mineral production of Virginia, 1913. . . .

Waugh 12-A drill

Wealth of Nations mine. New Zealand

Company report 614

Costs 526

Wedge mine, Colorado 822, 931

Weighing minute spheres of gold and silver. .J. I. Blair. .

Weights, compensating, and wear of stamp shoes 496

Welch, Max J Mexican labor and its peculiarities.... 597

Welfare work among mine workers.. I* F. S. Holland.... 717

Well guarded sheave 882

Welland canal. Canada 924

Wellington Mines Co.. Breckenrldge, Colorado *.*74

Wellman-Seaver-Morgan Co.. First motion electric hoist.. 390

Wenatchee Gold Mining Co., Washington 779

Werlnger Mines Co.. California 1007

Wernicke-Hatcher Pump Co., rotary air-compressor 624

West Africa, gold production 217, 811. 95G

West End Consolidated Mining Co., Tonopah, Nevada

76. 116, 232, 425. 737, $57,

v. Jim Butler. Nevada 619, 702. 932, 976

West Hill Mining Co., Wisconsin 467,

West Kootenay Power & Light Co., British Columbia, com-
pany report

West Virginia, coal production

Gas, natural, production 526

Ditto Editorial. . . 867

petroleum production 36. 985

Pottery production 236

Western Australia company dividends 614

Contract work 697

Cyanide and explosives and war 697

i leoioglcal Survey 25

Gold mining, men employed 816

Gold production 25, 198. 499. 854. 972

Gobi production decline Editorial.... 667

Government custom mills 716

Hoisting accidents 878

KMsoorlie geology J. L. Connor.... 193

Kalgoorlie, shaft cages 816

Labor partv setback 072

Labor troubles 24. 155. 381

Labor union proposals 881

Labor unions and Chamber of Mines Editorial.... 85

Machinery driving methods 881

Mine inspection ^ i 7

Mineral production 381

Unions and higher wages 853

Workers' Compensation Act and Insurance premiums.. 378

i n Electric Co, lead consumption 889

Western Federation of Miners and Butte Mine Workers'

Union 189

And United Mine Workers of America "7fi

Ditto Editorial 125

982

1009
817

933
18

Page.

Western Federation of Miners at Butte 461

Western Mining Co., Wolftone property. LeadvlUe Colo-
rado 4»

Western States Mining & Development Co. .r. \ . '. \ '. 230

Western Union Mines Co., Republic. Washington 976

Last Chance mine. Republic. Washington 702

\\ estern Zinc Mining & Reducing Co 575

Westinghouse Electric & Manufacturing Co., motors for

driving Hardlnge mills 74^

New ventilating fan <r,- <~\

Strike IS

Westwood Oil Co.. Utah 939

Wewlssa mine, Colorado 822 931

Whale oil . .• ,' 9 2t

V> hat is the matter with prospecting?. . .Charles Moore. . . . 257

Ditto Operator. . . . 107

ton Mining Co.. Yukon gin

Whim Well mine. Western Australia 697

Whipple, James flay, death of . . . 859

Whltcomb, George D., death of . ng

White Caps mine, Manhattan. Nevada 3S5. 503, 982*. 1009

Island sulphur deposit Editorial 903

„ LMtto w, i). Hornaday 913

^\ hite Pine Copper Co., Ontonagon, Michigan 192. 576

Whiting hoist 003

'Wlm's \\ ho in Mining* Editorial . '. . 981

Wild West Mining Co.. Cherry Creek. Nevada 159

Wierum, Howard F Experimental development of the

Hall process 518

Ditto Hall process. . . . 692

\\ lid Horse mine. Cripple Creek, Colorado. .75. 231. 423, 575 983
"Williams, Robert Progress and working costs, Tan-
ganyika copper mines 487

Wilson Consolidated Mining Co.. Utah e^O

Wilson. President, letter at American Mining Congress... 906

W Inch, new electric j;r,

Winohell, A. N., correspondence course, microscopic studv

of minerals and rocks Editorial...". 667

Wind stresses 815

Winona 232. 418, 503. 889

Wire rope, locked coll 1001

Rope, true diameter 815

Wisconsin. Highland district ochre ['. 970

Lead production by districts 306

Platteville district, smithsonlte 692

Platteville ore market 70, 305. 456. 616, 817, 970

University of. microscopic study of minerals and rocks.

correspondence course Editorial. .. . 667

Zinc production by districts 70. 306 456. 616. 817 970

Wisconsin Zinc Co., Wisconsin 817

New plant 457

Witwatersrand — See Rand.

Wltwatersrand Deep, Rand, sand filling 804

Wolfram, Argentina. Rosarlo district exports 648

Queensland production :»i;i

Slam production 75,3

Wolframite, England and war 419

Wolverine Copper Mining Co.. Kearsarge. Michigan

122, 232. 266. 347. 420. 427. 458, 615, 658 978

Company report 271

Work for mining law revision Editorial .... 866

Workmen's compensation George E. Bigelow. . . . 105

Compensation again Editorial. . . . 587

CompensRtlon, California, and Mine Owners' Casualty

Indemnity Exchange Editorial. . .'. 1

Compensation, California, insurance fund 157

Compensation, California, insurance rates tumble

_ Editorial 941

Compensation Insurance in California Editorial.... 41

Compensation merit rating Editorial. . . . 865

Compensation v. accident prevention

Fiank H. Trego 691

Wrangell, Alaska, mining district E. E. Hurja 69

Wyandot mine. Michigan 655

Wyoming, copper production 117

Gold production 117

Petroleum production 36. 985

Silver production 117

LTnited States Geological Survey map 896

Wind and Big Horn rivers placers 537

Yankee Boy Mining Co., Idaho 30,

Yankee Consolidated Mining Co., Eureka. Utah 117,

Year. End of the Editorial....

Yellow Aster Mining & Milling Co.. California, battery

stem guides ".

Yellow Jacket Gold & Silver Mining Co., Nevada

Yellow Jacket. Idaho, and Mandarin Mines Corporation..

Yellow Tiger Mining Co., Nevada

Yeilowhead Pass Coal Co., Alberta, Canada

Yosemite Dredging & Mining Co., California, jigs in gold

dredging James W. Neill. . . .

You Bet Mining Co.. California

Young Men's Christian Association betterment work

Yuanmi Gold Mines, Ltd.. Western Australia

Company report 706.

Contract work

Costs

Treatment of sulphide ore

Yuba Consolidated Gold Fields. California

Yuba No. 11 dredge, California, robbery

Yuba No. 14 dredge 108,

Yucca Mining Co., Arizona

Yukon. Klondike gold production

Kluane district

Lode mining

Territory mining

Wheaton district

White Horse

Yukon Gold Co 45S.

Chicago Bench suit

Operations of Emil Edward Hurja. . . .

350
85S
982

584

6 5 9
772
S23
573

839
Hue
714
381
1013
697
995
995

7 20
898

230

534

463
61 1
620
27
610
612

826

422

568

Vol 1"'.'

MINING PRESS

»; furnace, . H

Bdlloi

Calll

Platter Ilia illati let,

Editorial

■
Engl

Bdltoi
■■

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Editorial.
Kaneaa production

C E Slebentl
production 661

Montana production ; ". " ,,: -

Ii
t ictlon, -in'' . ■ I

Retorl imi Itlni

Situation ■ i: Slebonl

Smeltere, i.

Smelting prnctli ...i.n. Weal K n

1 1.
Smelting, Progresa in ,.., Sdlto

8mlthaonlte, Engllab and tmerl*

Editorial
Spelter, manufai

. ■ ani

Ion

i 'n I ted SU Ion ..464, 1(1,

Ditto Editorial

Wales amelter plana Editorial,

Wei concent ration recovei y . . ,

Wit ; i-i Ion by d

Zinc Corporation, Ltd., Now s,.uiii Wall report

J15.

:isi
i 10

"one of the most valuable ever published"

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SEND FOR OUR COMPLETE CATALOGUE

MINING PRESS, 420 market st., SAN FRANCISCO

« I

SAN FRANCISCO, JULY 4. I9I4

■

MINING AND SCIENTIFIC PRESS

July 4. i!H4

JUST LOOK THROUGH OUR
CATALOG FOR EVERY

DESCRIPTION

OF __

We have been selling supplies and machinery
to the mining trade for over 50 years and our
experience is worth money to you, to say nothing
of the time we can save you by carrying the
largest stock of

Mechanical and Electrical
Machinery and Supplies

West of the Mississippi River.

Our Electrical stock is complete with all up-
to-date supplies as well as Motors, Generators,
Switchboards, Etc.

Write for information on any particular line
you may be in need of.

THE H ENDRI E & BOLTHOFF

~~ MFG. & SUPPLY CO. ~

DENVER. — COLORADO.

Jul\ I l'"l I

\IINI\i. WD m II \ 1 II 1. 1'KI -s

MOST RECENT DEISTER DEVELOPMENTS

in Sand and Slime Tables

It will interest YOU to learn
details of Our Latest Success.

We will be glad
t<> furnish catalog
and data.

Also investigate ;
our classifier. 4

Double Deek Btmpl< x Slime ritntor.

AIhi Fonilhed in Single link Tyi
Paten taL

Manufactured and
Sold Only by

Debtor Machine I ompanj 'a

-, Sand Concentrator.
Also Furnished In Single Deck Type,
Patented.

DEISTER MACHINE COMPANY

INC. JULY 1912
Home Office : Shoaff Bldg., Fort Wayne, Ind. London Office : Salisbury House, London Wall, E. C.

OUT OF SIGHT

The drill which you want is the
one which does your work with-
out continual attention from the
repair man.

CLEVELAND
DRILLS

seldom see the light of day, once
they go below.

Assurance of this may best be
conveyed to you by practical trial.
Any CLEVELAND drill will be
shipped to you, subject to return,
if unsatisfactory in any degree,
without cost tOcyouf of any kind.

In the facefof an cpportur,ity[to
learn the truth the best judgment
does net "stand pat" upona ques-
tion of equipment. ; ■» t^u "^

We feel strcngly that yru and Catalog
No. 8 can get tog ether to good purpose.

THE CLEVELAND ROCK DRILL COMPANY

6410 HAWTHORNE AVE., CLEVELAND, OHIO

Mining and Scientific Press

ESTABLISHED MAY 24. I860

Vol. 109

San Francisco, July 4, 1^14

No. 1

CONTROLLED BY T. A. RICHARD

PI 9LISHBD WEEKLY BY THE DEWEY. PUBLISHING CO.

AT 120 MARKET STREET, SAN FRANCISCO.
Cable Address: Pertusola. Code: Bedford McNeill <- editions).

BRANCH OFFICES:
CHICAGO — 800 Fisher Bdg. Tel.: Harrison 1620.
NEW YORK — 1808-10 Woolworth Bdg. Tel.: Barclay 6469.
ON— The Mining Magazine, Salisbury House. E. C.
Address: Ollgoclase.

ANNUAL SUBSCRIPTION ';

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Canada $1

Other Countries In Postal Enlon 21 Shillings or J3

iSTER BAIN Manager

leco Postofnce as Second-Class Matter.

A NNO UN CEMENT

For more than ball ;i century the Mining and Scientific
Press has been the exponent of the best in the technology of
mining and metallurgy, first on the Pacific Coast, then In
Western North Americas, and finally around the world. Its
purpose has always been In print an independent technical
journal, and in I he Press organization the Editor has always
bi i captain of the ship. With expansion it became necessary
to organize i,y departments, and in recent years the Editor
has assumed less responsibility for the conduct of the business
itself. Willi the retirement of Mr. I.. A. Greene, who has
served as Business Manager since 1909, to enter business for
himself, 'be Editor has resumed direct responsibility for the
whole enterprise. He will hereafter be Editor and Manager
and will have full charge from front to back cover. This is
in accord with the traditions of the Press. We believe that
the fundamental purpose of a technical journal is to furnish
accurate and timely technical information; that the Editor
and I lie readers are the first requisites to a successful publica-
tion. If the editorial staff be capable and energetic and if the
be sympathetic and loyal, a journal will succeed. The
excellent results achieved by the Press show this theory to he
sound. Personality counts in journalism today as much as it
ever did. If we have no more Horace Greeleys, we do have
Horace Lorimers. Personality merely manifests itself in a
new way. All editor can no longer content himself with
writing pertinent paragraphs or luminous leaders. He must
n eye to the whole paper and must accept responsibility
ing in it. Readers of technical journals, at least.
look to the advertising as well as editorial pages for accurate
information. A journal is judged as a whole, and clean ad-
vertising pages are recognized to be as important as inde-
pendent editorials. Fortunately, technical journalism learned
this lesson long ago. The new element in journalism is the
idea of service as distinct from news. Publishing a technical
journal, and making it the best in its field, as surely calls for
knowledge of that field as does the editing. A man
may be an excellent 'employing printer.' he may even print
aper in one field and, yet achieve but mediocrity
lie attempts to enter another. Publishing is more than
covering paper with ink; it is the conduct of an organization
Ives service to readers and advertisers, and real service
.er be based upon special knowledge.

TABLE OF CONTENTS

EDITORIAL

Notes 1

Refinancing Natomas 2

Sold Exports 4

ARTICLES

Mil bods ot Testing ft v. eb Gravels. By W. j. Radford. . . 5

In this Mr. Radford attempts to answer tie- question
i if what degree of accuracy are gravel tests'?" He
details the methods of making pan tests, of taking
samples, of sinking test pits, and of drilling by
and machine: giving detailed statements of rej
based upon tests made In both North and South
America.

Mining Revival in the Ketchikan Distbict, Alaska.

By E. E. Hurja 10

Ketchikan is the southernmost nf the big Ahiska min-
ing districts. It Is an area of contact nietamorphlc
deposits that has long been in minds of mining men.
but which big capital has been slow to enter. The
Granby company has bought the Mamie group to help
feed Its Anyox furnaces, and the Alaska Gastlneau
managers, encouraged by their success at Juneau, are
sampling the Julia and Humboldt groups. This careful
review of actual present conditions throughout the dis-
trict Is written by Mr. Hur.ia. who Is revisiting Alaska
this season as special correspondent for the Press.

Irs: Chambers at the Ashio Smelter, Japan 13

First-hand data, with drawings, of a dust chamber In-
volving Important Improvements, as It Is now being con-
structed hy the ingenious engineers at Japan's greatest
copper mine.

ELIMINATING THE MOSQUITO 14

Practical advice based upon the experience of the Ten-
nessee Coal. Iron & Railroad Company.

Aistrai.ian Jam and the Malay Tin Inotjstby 15

How the need for tin In the canneries led to develop-
ment of a large and profitable mining Industry. A field
American dredge men would do well t" study.
MINI KG i x the Argentine 17

IMUAX CoAI. OlTPUT 17

A Mil B3GAN STOI'ING METIIOn 18

COAI Proiii TTiox of West VIRGINIA 18

DEPARTMENTS
I ii-i iTSBION :

Simplification of Gold Ore Treatment. Bu tloel Cun-

ningham 19

Platinum Assay. By Frederic P. Dewey 20

Diffusion of Ore Deposits. By A. C. Lawson 21

Revision of the Mining Law. By C. J. Fry 21

Oi\l IXTI'.ATES 22

Review of Mining: special correspondence from Nova Sco-
tia. Leadville, Yukon. Rhodesia. Philippines. Salt Lake

City. Kalgoorlic New York .■ 23

The Miking Summary 28

Person \l 32

Schools and Societies 32

Society Meetings 32

The Market Pl.w e:

Stocks and Bonds 33

Metal Prices 33

New York Metal Review :J4

Current Prices for Ores and Minerals, Chemicals, Oils.

and Candles 36

Company Reports: Colombian M. & E. Co.: Robinson Gold:

Broken Hill Prop. Block 10; St. John del Rey .17

Mineral Statistics 38

Book Reviews 39

Mining Decisions 39

New Machines ami Devices: The I'se of Link-Belts; New

Deister Products; Commercial Paragraphs 40

.4h index to Volume t08 Ikis been prepared and will be sent
mi request.

. 1-»U

MIMV. \\1> m II \l II I. I'KI SS

-THK BCTTK MINTR-

-11AY 10. 1

Water Liner Machines Now
in Use in Butte's Mines
Solve the Dust Problem

Within lb* last eight or ten month*
mott of the largo mining companies
operating to Bulla have installed "po-
stal machine* that do away with the
dust from drilling, which has been on*
of the chief. If oot the priclpal causa
Of miner*' coniumpllon, according to
Stat* Mining Inapoctor William H.
Oram. Ha predicts there will be more
activity id mining in Montana this sea-
■ on that ever before, ear* the Helena
Record.

Until the Installation of water liner
machine! In the last few months, all
hole* were bored dry. and the fine
powdery dust filled th* workings and
wu inhaled by the miners. Now 40
Or 60 water liner machine, are In use
and with them -the holes are drilled
wet and th*re !■ no dust engendered.
Bo successful have tbs -machines been.
and soch a great Improvement In
working; conditions has followed their
Introduction that In a very little while
practically ***ry mine In Butte will
be «o equipped. Mr. Orem believes.

"I was down In Arizona several
months ago Inspecting the mines there
with particular reference to safety ap-
pliances. While I obtained many valu-
able Ideas, the general standard of
eafetv there Is no higher than here
In Montana, and I am convinced that
Montana standards will compare most
favorably with those to be found any-
where In, the mining world. Jn Ari-
zona last year 13.500 men were em-
ployed and M 'men were killed: in
Montana IS. 500 men were employed
and 50 were killed.

none fa Yortoal.
"Butte Is normal and Is employing.
It usual quota of men, but with the
Increased attention being jgWen to zinc
there\ I believe many more men will
be permanently -employed wlth'n the.
next two years. It Is asserted, and j
lher<> is no reason for doubling l tie.
statement, that within two yeocj
Butte's output .of 2lnc will be as great j
as Its outpuf of copper Ther* -are.'
Iars;e deposits pf sine now uncorked
thai soon win be adding* to the camp'?
wealth. The Butle-Superlor has a'»lnc

mill In successful operation, and the
Clark plant will start operations In
about a month.

'The Helena district gives promises
•f being one of tha liveliest [In the
state this year outside of |Butte.
Radersburg. I am Informed. ■ never
looked batter. In the lowest 1*9*1* of
tha Keating there are s+x or t seven
fait of ore. Other districts [where,
t*ere wl'» -i' "mere activity than has
bewn manifested for a number of years
are In Deer Lodge. Powell and Granite
counties. In the Little Rockies of
Blaine county. In Llbby, and around
Saltese In Missoula county, and In tbe
southern part of the slate In Beaver-
head county."

Send for Bulletin 4020

INGERSOLL-RAND COMPANY

NEW YORK

Offices the World Over

LONDON

MINING AND SCIENTIFIC PRESS

•Tulv 4. I'M 4

The Wedge Mechanical Furnace

PATENTED

A Few Large Furnaces

Are more economical to install and to operate than many small furnaces. It will pay you to install Wedge
Mechanical Roasters for large capacities. They are built to last.

Write us stating analysis of ore, concentrates, mixture or material you desire to roast, characteristics and
physical condition of same, number of tons to be treated per twenty-four hours, and results desired in the calcine.

WEDGE MECHANICAL FURNACE COMPANY

115 Chestnut Street, Philadelphia

July 4 I'M

\II\IV. WD S< II Mil H I'KI --

Service for Engineers

i before the How-sheet la settled, or
tlif si/r of the units determined, the
engineer has need "f data that AJlis-
Chalmera ia ready to furnish him.

Our large engineering organiza-
tion lias records accumulated
from years of experience with
all phases of those industries for
which we manufacture.

Difficulties, tests of materials ami mach-
inery, careful analysis, erection troubles,
failures, good judgment, and success
make up that experience.

Allis-Chalmers is a clearing-
house of experience for the
benefit of you engineers. Make
it easier for the operator for
whom you plan by securing this
service.

Allis-Chalmers Manufacturing Co.

Mining Machinery Department

District Offices

in the

Principal Cities

c< the

United States

In Canada refer to

Canadian Allis-Chalmers Company, Ltd.,

Toronto

Milwaukee, Wisconsin

Fnreijrn Offices
and Representatives

in the important

Mining Centeis ot the

World

Motor Drives

simplify mill construction and allow greater flexi-
bility in the arrangement of equipment.

With proper grouping and proper
selection of motors, power costs are
reduced.

Allis-Chalmers induction motors are well adapted
to group drives, and are particularly responsive to
severe service demands.

Our types "ANY" and "ANZ" are
suggested for reducing starting loads
— they cut down "maximum demand"
and so lower the cost of power.

In the interest of simplicity, flexibility, reliability
and economy, provide Allis-Chalmers motors.

MINING AND SCIENTIFIC PRESS

July 4. 1914-

The Gujrantr c
of Excellence

100 B P or Driven Shaft Hoist atGr lensburg Coal Co.. i Jreeasbuxu, Pa., no ifuJ operation.

The Electric Mine Hoist

Most Economical Obtainable

Some of the advantages of electric hoists over steam or air are :

Greater Safety

Greater Reliability

Longer Life of Ropes and Brakes

More Sensitive Control

Lower Operating Cost.

The latter advantage is realized practically always and a saving of one-half the powencost
of steam hoisting is often obtainable when power is purchased from a central power station.

No power bill comes in for the many idle moments when the hoist is not operating. No fire-
men and ash handlers need be kept on duty all night.

Our electric hoisting experts have designed many of the large as well as the small electric hoist-
ing equipments in use. Their experience is placed at your disposal without implied obligation.

Bulletin Xo. 4922-A, "Electricity in Metal Mines," and Bulletin No. 4886-A, "Electricity in Coal Mines,"
or Bulletin No. 4939, "Electric Hoists," will be sent on request.

General Electric Company

Atlanta. G&.
Baltimore, Md.
Birmingham, Ala.
Boise. Idaho
Boston, Ham

Buffalo. N. Y.
Butt.-, Mont.
Charleston, W. Va.
Charlotte, N. C.

Chattanootm. Term
Chicago. 111.
Cincinnati, Ohio

Cleveland, Ohio
Columbus. Ohio

I, Ohio
Denver, Colo.
Dee Moines, Iowa
Detroit, Mich.,

tOfficeof Ag.nti
Elmira. N. V.
Erie, Pa.

Fort Wayne. Ind.
Hartford. ConrT

Largest Electrical Manufacturer in the World.

General Office : Schenectady, N. Y.
ADDRESS NEAREST OFFICE

Indianapolis. Ind.
ille. Fla.
Joplin, Mo.
Kansas city. Mo.
Knoxville, Tenn.

Los Angel s. Cal,
Louisville. Ky.
Memphis, Tenn.

Milwaukee, Wis,

Minneapolis, Minn.

Nashville. Tenn.
New Haven. Conn.
New Orleans. La.
New York. N. Y.
Niagara Falls, N. ^
Omaha. Neb:
Philadelphia, Fa.
Pittsburgh. Pa.
Portland, Ore.
Providence. K. I.
Richmond. Va,

Rochester. N. Y.
wait Lake City, Utah
San Francisco, Cal.
St. Louis. Mo.
Schenectady, N. Y.
Seattle, Wash.

Spokane. Wash.
Springfield. Mas9.
Syracuse. N. If,
Toledo. Ohio
w ii-liington, D. C.
Youngstown. Ohio

For Texas. Oklahoma and Arizona business refer bo -..mini est General Electric Co., ' formerly Hobson Electric Co.) — Dallas, El Paso, Houston

and Oklahoma City. For Canadian business refer to Canadian General Electric Company, Ltd., Toronto. Out l ffl

Jul\ 4, l!H4

MINING AND sell Mil I. PR| »

Dodge Dependable Gearing for
Mines and Mills

FOR twenty-five years or more, gearing has
been a part of the Dodge line, and in its
manufacture the same high-class methods so
result productive iii inir iron center wood rim
pulleys, self-oiling bearings, pillow blocks,
clutches, conveying and elevating equipment,
etc., have been used.

Our facilities for gear design and construc-
tion represent experiences which have brought
together the highest type of equipment, engi-
neers and tradesmen. The Dodge list of gears
— spur, bevel, miter and mortise — including
those bored and key-seated, or set-screwed, has
been made as comprehensive as possible.

Our mortise gears are filled with thoroughly
seasoned, hard maple cogs, securely dressed
so as to assure uniformity and correct pitch'
of teeth. They are durable and smooth run-
ning, and owing to their construction the teeth

Dodge

Spur

Gear

eau be renewed at any time, and at .small
e pense.

Complete information, with prices, may be
obtained by writing the factory or our selling
representatives mentioned below. If at any
time you are in need of gearing, by giving us
the following information we can take care
of you without delay:

The speeds of the two shafts, power to be
transmitted, the maximum and minimum diam-
eter, if .spin- gears, the distance between shaft
centers: the pattern number (if Dodge) ; pitch
diameter, number of teeth, pitch and face:
the exact size of bore in inches, keys or set-
screws or both if desired.

If you do not happen to have our catalog
handy by all means send for it. There are
many pages devoted to gearing — the depend-
able kind.

Dodge Manufacturing Company

Power Transmission Machinery for Mines and Mills

Mishawaka, Ind.

Dodge Manufacturing Co., 14th and Lovejoy Sts., Port-
land, Ore.

Harron, Rickard & McCone, San Francisco and Los
Angeles.

Hendrie & Bolthoff Mfg. & Supply Co., Denver.

Mine & Smelter Supply Co., Salt Lake City and Denver.

Atlanta, 28 South Forsyth Street.

New York, 21 Murray Street.

Boston, 137 Purchase Street.

Philadelphia, S15 Arch Street
Chicago, 208 South Clinton Street.
Cincinnati, 12S West Third Street.
St. Louis, 408 North Fourth Street.
Minneapolis, 100 North Third Street.
Indianapolis. 1512 Merchants Bank Building.
Grand Rapids, Mich.. 321 Bond Avenue.
Dallas, Texas. 1105 Busch Building.
Pittshurgh, 337 Second Avenue.

MINING AND SCIENTIFIC PRESS

July 4. 1!H4

NATIONAL

Facts About "NATIONAL" Pipe That

No. 1

A Short History of Pipe and Early Methods of Manufacturing

IN the early history ol man's endeavor to solve the
difficulties of mere existence, some sort ol
for the conveyance of fluids must have been em-
ployed.

Probably the "bamboo," which in tropical countries

grows to five or six Inches in diameter at the lias.-.
was used. It is today frequently used by "coolie"
gardeners for conveying water along the surface of
the ground for short distances.

EARLY ADVANCEMENT.

The next step was a "pottery" tube, and these are
found in Egyptian, Aztec and other prehistoric re-
mains, which are brought to light by the excavations
of archaeologists.

There is ample evidence that lead tubes were
lamely used in Grecian and Roman civilization. In
many museums lead pipe and bronze water faucets
(closely resembling the modern faucet) are shown
which were recovered from the ruins of Pompeii.
Herculaneum. and other buried cities.

Pliny, whose writings cover the last three-quarters
of the first century A. D.. states that "in order to
raise water up to an eminence lead pipes must be
employed."

FIRST IRON TUBES.

Probably the first imperative need for iron tubes
was for the manufacture of gun barrels.

After the invention of gun powder, the first can-
nons were made of bronze, and early Spanish can-
nons are wonderful examples of metal-working skill
in ornamentation.

But this was too expensive a material for gun bar-
rels, and the need for cheaper material brought out
the earliest application of wrought iron for tubes.

FIRST METHODS OF WELDING.

Fif.l

In the early history of wrought iron tubes, the only
known method consisted in bending an iron plate or
Btrip to form a "skelp," and the edges were welded
meal by a smith hammering the red
hot metal over a rod or mandrel. A rather expensive
and tediovis process.

Fig. 2

NATIONAL TUBE COMPANY

Atlanta
Boston

Chicago
Denver

Kansas City

DISTRICT SALES OFFICES:

New Orleans New York Philadelphia

Pittsburgh
Salt Lake City

St. Louis
St. Paul

NATIONAL

Jul\ I 1 •» 1 *

MINING \\l) x II Mil It I'M SS

ATIONAL

Every Mining Engineer Should Know

In l^'i.' an Englishman named Osborn patented ma-
ehlneo tor "welding and making barrels of Breams
and other cylindrical articles."

EARLY PROCESSES EXPLAINED.

Figure l The Bkelp IB raised to a welding heal In
an open or close fire and, after the mandrel has been
Inserted is then placed in the swage or anvil A. and
welded by the action of the tilt hammer.

In figure 2 the inventor states: "I take a skelp ami
place it In either of the beds, 1. 2, 3. according to the
part required to be welded, and which welding is
effected by the swage segments A performing half a
revolution, the manner of which Is explained by the
profile B."

This is believed to have been the earliest form of
machinery for welding iron tubes. But as may
readily be seen the process was not very rapid, and
in the next two or three years a new necessity arose
for Iron tubes in quantities.

About the time of Osborn's invention for tube-weld-
ing machinery, another Englishman was perfecting
his process of making coal gas for lighting purposes.

GAS TUBES.

Iron tubes (gas tight) for this purpose were essen-
tial, ami the Inventor of gas lighting (Murdock) first
collected and used old gun barrels (of which there
was an abundant supply at the close ol the various
European wars), screwing the barrels together Into
a continuous tube to convey the gas.

(Parenthetically, it may be said, some pessimists
have staled that modern economists have reversed
Murdock'a methods, and made gun barrels for remote
markets from gas pipe!)

The extension of gas lighting was very rapid, and
the necessity for production of iron tubes with greater
facility and less cost became apparent.

FIRST BUTT-WELDING.

The inventors were equal to the occasion, as they
generally seem to be. In 1S24 James Russell filed a
specification for "an improvement in the manufacture
of tubes for gas anu other purposes." This apparatus
will be shown in the next announcement, which will
be published in the August 1st issue of Mining and
Scientific Press.

<]Toreadilv identifv" NATIONAL"
material and as protection to
manufacturer and consumer alike,
the practice of National Tube
Company is to roll in raised letters
of good size on each few feet of
every length of welded pipe the
name "NATIONAL" (except on
the smaller butt-weld sizes, on
which this is not mechanically
feasible; on these smaller butt-weld
sizes the name" NATIONAL "ap-
pears on the metal tap attached to
each bundle of pipe).

ame Rolled in
Raised Letters on
National Tube
Company Pipe

<j When writing specifications or
ordering tubular goods, always
specify "NATIONAL pipe, and
identify as indicated.
<J In addition, all sizes oi
"NATIONAL welded pipe below
four or five inches are subjected to
a roll-knobbling process known as
Spellerizing to lessen the tendency
to corrosion, especially in the form
of pitting. This Spellerizing pro-
cess is peculiar to "NATIONAL"
pipe, to which process National
Tube Company has exclusive
rights.

(met building) PITTSBURGH, PA,

PACIFIC COAST REPRESENTATIVES:— U. S. Steel Products Co., San Francisco, Los Angeles, Portland, Seattle.
EXPORT REPRESENTATIVES:— U. S. Steel Products Co., New York City.

NATIONAL

MINING AND SCIENTIFIC PRESS July 4. 1914

MR.

DREDGE OPERATOR: |

DoYour Specifications
For Screen Plates Stipulate?

High Carbon Steel Plates, Uniform Tapered Perforations

Thick Plate, three-quarters or more
No burrs top or bottom Small Holes — Any Diameter

Our screen plates are drilled and counter-sunk on special automatic machines which
enables us to turn out screens of the highest order and at a very satisfactory price.

UNION IRON WORKS CO

SAN FRANCISCO, CALIFORNIA

CITY OFFICE: 311 CALIFORNIA STREET

July 4. IVl I

MININC WD n II Mil h TKI SS

I :

ANOTHER STEP FORWARD

ANNOUNCEMENT

We desire to announce that we have secured the
exclusive manufacturing and selling rights for the
United States and Mexico of the new and improved

NISSEN STAMP

(Patented)

which has so satisfactorily demonstrated its superiority
over every kind of gravity stamp in South Africa.

CHALMERS & WILLIAMS

CHICAGO HEIGHTS, ILL.

MINING AND SCIENTIFIC PRESS

Julv 4. 1!H4

THE SUN NEVER SETS ON
HARDINGE MILLS

AN ASIATIC LINK IN THE CHAIN AROUND THE WORLD

IT IS DIFFICULT ENOUGH TO OBTAIN AN INTERNATIONAL REPUTATION, BUT

TO MAINTAIN SUCH A REPUTATION IS POSSIBLE ONLY OF PRODUCTS OF

UNQUESTIONED WORTH.

THE FACT THAT THE HARDINGE MILL GAVE BETTER RESULTS IS THE REASON

WHY A REPEAT ORDER WAS RECEIVED THE OTHER DAY FROM THE ASIATIC

CONCERN IN QUESTION.

IS NOT THE EXPERIENCE OF OTHERS A SAFE GUIDE?

AT LEAST WORTH LOOKING INTO?

LET US CONSULT WITH YOU IN THE SOLUTION OF YOUR GRINDING PROBLEM.

HARDINGE CONICAL MILL CO.

London Office:
Salisbury House

50 CHURCH ST.,
NEW YORK

Cable Address:
Halharding, New York

Loral Sales Agents- f Mine & Smel,er Supply Co., Salt Lake City, Utah,
i-ocai oaies «gems. ( Hendrie & Bolthoff Mfg. &. Supply Co, Denver, C

Colo.

July I. l-iu

MIM\.. WD » II Mil It I'M SS

BDITORI

M \\ .... BBRN'BVt ITS I

Till i.M i- T RE mi N< « N ..i k ■

ftICK v i: i • London - ■ lal I

KOW \i:i> u m.k , ondrnt

1/ ru\ i i:im

•

Bdlloi

\ w

Mill

III

■ \\ Purlni

. in ii.

T> EADERS will tinil the table of contents formerly on
■*■*- this page, upon the second white page in the p
The !!•■« arrangement will allow more space both for the
table itself and for editorial matter.

ffcECISION of the rail of the Kennedy Extension
■'-' Mining Company againsl the Argonaut Mining
Company has been rendered and is favorable to the
Argonaut The points at issue were brieflj discussed
in nil!- issue of January 17. and a full summary of this
ini| t.i. it case will follow.

pENERAL FELIPE ANGELES 1 Lie. Luis

^-^ Cabrera are prominent among those named al the

Niagara Palls confere as possible successors of

Hnerta. As both are Constitutionalists, it is hardly
likelj that Huerta will accepl them and iis Carranza
baa ambitions of becoming president, neither can count
upon his support.

/"CALIFORNIA mine operators will welcome the an-
^- 4 nonnceraenl that the Mine Owners Casualty ln-
demnity Exchange has been organized in order to re-
duce the cost '>(' workmen's compensation insurance
through cooperation of the mine operators. This is a
matter in which we take much interest and that we
propose to discuss fully next week. In the meantime
inquirers can get full information at the offices of the
new company in the First National Bank building, San
Francisco.

ALASKANS were especially interested in the de-
-'*- cision of the case of Likaits v. Johnson construing
the Alaska placer act and reported in our issue of June
6. The ease arose over use of a power of attorney to
locale placer ground. Another case was that of Suther-
land v. Purdy, reported in May. Briefly, the new law
requires that power of attorney, to be effective in placer
location, runs! be recorded within the judicial district
in which it is used and limits its use to two locations in
any one month. In the one ease the recording was not
done until after the location was made, though before
the second locator filed on the claim, a fact perhaps not
made sufficiently clear in our abstract. The court held
that the order of the acts was immaterial in view of the
good faith shown and the climatic and geographical con-
ditions faced, fn the second case the record was im-

properly made but has held to be good i tin

The judge held that, having in t iew the actual conditions

in the field, when a locator deposits his doCU nts in

the proper recording Office and pays the r 'In

later receiving the documents hack bearing the endorse-
ment of record. In- is not liable for any errors or neglect

Of the recorder. These iliv sensihle I illsi less 1 1 ke ile-

cisions in line with the general rule that the mining law
is to be interpreted in accordance with the

as they arc rather than as they might be.

'TMIK NATOMAS tiaseo points again to the moral we

-*■ have often preached: namely, the sound ecOl UC?

basis of the W( rk of independent engineers. The men of

the regular staff of the Natoraas are highly qualified, but

human nature is not to be denied, ami as vendors we all
see most keenly the strong points of what we have In sell.

We have previously referred to mistakes made by the

consulting engineer who in this ease acted for the Lon-
don bondholders, lie has replied in the Press and also
in a special report to the stockholders by urging that he
merely accepted figures given him by the men on tin-
ground. The very fact that his having done so has in-
volved him in the necessity of making elaborate explana-
tions and excuses, is the best of arguments against an
engineer in any such situation accepting critical data at
second hand.

pREATION of a petroleum division in the I'. S. Bu-
^* reau of Mines and appointment of Mr. \V. A. Wil-
liams to be its chief, is in some ways the most important
move made by the United States government in its re-
lation to petroleum production in many months. The
new division is to have charge of all technologic work
connected with oil on the public and Indian lands. As
owner of large areas in the midst of productive fields,
and of even larger tracts of potential oil laud, the Gov-
ernment has a direct interest in securing the most
economical development and the maximum yield. Waste
of gas and flooding of oil sands is as serious when On
public as on private land. In Oklahoma, too. the Secre-
tary of Interior, as guardian for the Indians, has heavy
responsibilities in connection with actual production of
gas and oil, and if oil is to be produced from public
lands by lease or otherwise for the navy, to say nothing
of proposals that the Government should build pipe-
lines, there is every reason why the Department should

MINING AND SCIENTIFIC PRESS

July 4. 1914

have mi its stall' men who really know the oil business,
ileum producers have complained, qoI without justi-
fication, thai in the past, goven ml action baa been too

often uninformed, or based upon half knowledge. Mr.
Williams is ;i thoroughly competent oil man, a graduate
of Stanford University and experienced through service
with tin- Associate and General Petroleum companies.
as the confidence of California operators and may
pected i" "in thai of Eastern petroleum producers
a* they come to know bira. It is understood that $60,000
is available for beginning his work and an amendment
to the sundry civil Mil has been introduced increasing
this mm to $200,000.

REFINANCING NATOMAS

Plans for relieving Natomas Consolidated of Califor-
nia from financial difficulties have been worked out in
I. on, ion and weir announced in San Francisco, June

I s . fn the interest of the new plan, an appeal is

being made to bondholders by a committee consisting
of .Messrs. Frank B. Anderson, Herbert Fleishacker.
Percy 'I'. Morgan, George B. Webber, and Curtis II.
Lindley; certainly a list of weighty names. Among

liios. active in formulating the plan in London were

Mr. Herbert C. Hoover and others of equal standing.
Nonetheless opposition has appeared, being voiced by
McCutcben, Olney, and Willard, and a formidable re-
volt on the part of bondholders is not improbable. "When
a company having a liberal number of conflicting secur-
ities gets into financial difficulties, it is hardly to be
expected that any plan for reorganization will he ac-
cepted without protest. The very condition that makes
niization necessary, implying as it does some fail-
ure or miscarriage of plans, requires that there shall
be some sacrifice in order to offset it. With security-
holders having unequal interests, it is natural that
each should try to save for himself what he can, and

equally inevitable that the other parties in interest, if

informed and vigilant, should protest. There is alum.

dant room for difference of opinion, and it is possible

uss these differences, we hope, without imputing

re than the normal desire to save what

he may for himself.
It is proposed to organize a new company and to

000,000 in live-year notes: $16,500,000 in 20-
year. 6 per cent, first mortgage bonds, using .+4.000.000
of these to secure the five-year notes; +7.250.000 in non-
eiimulative stock: and +9.250.000 in common stock. The
right is reserved to pay the first five years interest on
the bonds in bonds of the same series, and +2.500.000
of the issue is held for that purpose. A new English
company capitalized at £600.000 is to be formed to
hold the common slock. The securities are to he dis-
tributed as follows: The Natomas Syndicate will buy
the $3,000,000 issue of notes for .+2.700.000. and the
■Hi stock. Each holder of + 10011 of the first mort-
gage hoods of the present Natomas company will re-
ceive +fi00 in the new bonds and $400 in preferred stock.

Each holder of +lllllll of second mortgage bonds will
receive $500 in preferred stock and £5 in the stock
of tic English company. Each holder of $100 of stoek

in Natomas Consolidated will receive £1 in stock of
the English company. The floating debt creditors will
surrender their securities and take 90-day notes or the
new five-year notes at 90 cents. Since the floating debt
amounts to $1£88,000 and the debt to the Natomas
Syndicate is $1,213,000, it is evident that hut little

additional cash will become available under this arrange-
ment. The plan proposed is peculiar in that floating
debt creditors and holders of junior securities, in return
lor the advancement of a relatively small amount of
additional capital, arc to be given preference over first-
mortgage bond holders. The latter are asked to con-
sent to receive further bonds in lieu of interest for
1 he next five years. This payment of interest on bonds
by issuing more bonds is strongly reminiscent of the
nursery rhyme:

Big bugs have little bugs to bite 'em:

Little bugs have littler buss.
And so on ad infinitum.

If, indeed, a plan has been found by which interest
On debts can be met by merely creating more debts, a
delightful field for financing is opened. Seriously, how-
ever, this hut postpones the day of reckoning and adds
to the interest charge. In the meanwhile, the handling
of the property will be in the control of those who
have a minor interest, and in five years the best part
of the most nearly liquid asset, the gold reserves, will
be gone. Whether the market for land will have im-
proved enough to offset this is a question.

The serious matter, the one of general interest, is
the light regard paid to the first mortgage bonds. Na-
tomas bonds have been endorsed as suitable for in-
vestment of trust funds by bankers standing high in
the business world. Now they are swept aside to give
piled-up security tO those who advance money on sh'ort-
linie notes. Incidentally, it develops that by reason of
the issue of reclamation bonds, the first mortgage bonds
arc in fact now junior securities. No wonder that it
was found difficult to make this clear to British bond-
holders. It is far from lucid to many nearer Hie home
of the Company.

The men and the banks that advanced money this
spring to save Natomas from a receivership have a
strong claim for preference in the reorganization. By
certain of the directors at least, personal securities were
advanced to save the Company credit. No adjustment
can be satisfactory that does not take into account such
claims. But the bondholders also have equities, and
back of that is the public interest. There can be no
question but that public confidence in Western securities
will lie seriously injured if Natomas bonds are set aside
in this fashion. A bond should stand for something.
If as a matter of fact it has come to represent nothing
definite, it will be hard hereafter to sell bonds, as it
is now hard to sell stocks, and industry will suffer.

It is difficult to determine the real present value of

.lutv 4, I'M*

\1I\1V. \M) x II M II |. I'KI SS

HI UT1

entei pi \m In pari >' is founded "ii gold

i 11 ImikI r me How-

king in a i nol the land di

Id thai ii ilaimed by drainage and irri

ingeniooi than that
■ gold dredging land, valued 1 1

i.l estimated by the Com-

i net, forma the

profitable Industry which, with Bnbordinate

rushed rook and subsidiary enter-

i been paying interest on bonda iaroed to oh

Fundi tor reclaiming valley landi Immediately

north of Sacramento, In the end it haa I n planned

tliiit the reclaimed lands should be sold a) such prices
(ford .1 profit on the whole enterprise,
The plan has many excellent features Oold-dredging
is a profitable but short-lived enterprise, A gold dredg
hi'.: field may be quickly equipped and brought into
production, and, while the dredging ground lusts thfl
income "ill l„- sufficient i" carry a large bond issue,

such ns is necessary to flnai a reclamation project

through the long lean years while the bind is being
brought under cultivation and sold. It haa the inherent
difficulty that it combines two dissimilar enterprises,
both of which an speculative. A speculative enterprise,

wore si ss. requires special knowledge and

cli se attention, ami it is a rare thing tor a manager,
or even a group of managers, to handle dissimilar busi-
• equally well. As noted by Tin Mining Maga-
Mure is even ;i movement now toward having
boards of consulting engineers instead of one tor emu
panies engaged exclusively in mining sad closely re-
lated industries, and it is a well known fact that min-
ing companies only in the rarest instances make money
from such agricultural lands as they chance to own.
On the other hand, farmers as mine managers have
hi me a byword. To combine gold-dredging and farm-
ing is simply t,i invite disaster.

And disaster came. We have repeatedly directed at-
tention to the fact that estimates made by the Natomaa
gement and the Company's consulting engineer
proved sadly out. The gold-dredging ground
owned by the Company has long been known to be valu-
able, bul much of it is cemented and hard to dig. Build-
ing a dredge to handle it necessarily involved an ex-
perimental element. It is true, probably, thai the final

OUtC ■ is even yet not wholly certain, since the

dredges, large and strong as they are, are subjected to
unusually heavy strains, and it is too soon to say what
their life will be and what is a proper amortization
clianre. They are magnificent dredges and are pcrforni-
II. but operating eosts for short periods are often
deceptive. Delay in equipping the ground with a full
fleet is the obvious cause of the disaster that lias over-
taken the Company; the gold has come from the ground
too slowly and in too small amounts, while all the time
interest charges were mounting and engineering expenses
in connection with the land reclamation were to be

'• building the dredg
hie? although the /naiu lues have not been changed
Iher with n wont unusual sequence of fin
and lible Tor the delaj The

fad t anticipated, tl

idg nt of i) mcerned and ■

bondholdora to question everything, This attitude is
reinforced by auoh drcumatancea as that Mr V. .1 de
Sabla, in speaking before the bond and stock holders in

London in 1911, estimated the profll tor 1918 al t&

000; in t'aet the total waa (11.151,887. The net yield
from gold-dredging tor last year waa estimated al
11,850,000, and proved to hi It ia a brave

tale of optimistic venture, bul a aorrj ■ of estimates

ami performai

It is . - \ • • 1 1 more difficult t.> form an estimate of the
value of the lauds being reclaimed. In round numbers

then- are 28,000 acres of irrigated lands ami 60,1

of i tarnation lands, Mr, de Sabla said. In the ad-
dress quoted, thai the land hail coal about (25 per acre

This, however, makes but a small fracti !' the amount

realized from sale of bonds alone, about (8,500,000, and
there are still heavy payments on land to be t. That

reclamation of land is itself profitable as well as good
for the stat.- in which the land lies, has 1 n abundantly

proved; provided always that the land be well chosen,

ll mrineering and the estimates sound, and the mar

I, it reasonably certain ami near in point of lime. The
beal lands go begging at times and in places, and in-
terest on money spent in throwing up embankments

and putting in . Irains and irrigating ditches may well

.■at up the profit on the work if the sab- of the land
be slow.

Another factor thai is not always sufficiently con-
sidered is thill men- 1 lamalion of land is not all. The

expense .0' preparing it for crops, the building of houses,

barns, and fences is considerable, and must all be fig
lircd into the cost. It must either be done by the ven-
dor or its cost deducted from the price Ihal would

otherwise be paid by purchaser. It is nol possible to

sell bind, in any large way. except upon terms that
permit the purchaser to earn good interest on his in-
vestment, and it is not always possible to sell even
good bind promptly. A recent investigation showed

thai in California the mere cost of selling lands absorbs

-Id per cent of the price realized, and the rotable failure
of California to attract, settlers rapidly can undoubt-
edly be laid to the absurd overvaluation of the lands
on the market. An individual may make satisfactory

returns from a few acres devoted to some special crop,
but a state as large as France with only two-fifths of
its population on the farms, must be content to attract
settlers on an "alfalfa basis." Improved lauds of equal
value can be bought in Europe today tor less than is
being asked in California, while in Canada, Australia.

and other new countries settlers are offered H twice-

of excellent lands at prices still lower. These are facts
that must, be taken into account when it, is proposed to
reclaim and market any such area as 80,000 acres. We

MINING AND SCIENTIFIC PRESS

July 4. 1!H4

would not pose as an expert on agricultural lands. We
understand thai sum,- Natomas land is of hign value;
some doubtless is doI worth the mdhey spent reclaim-
ing it Such inequalities are inevitable when great areas
are included in a single project. Bow much is good
and how much bad, we do not know, nor are we aware
of anj certain information available to the public or
the bondholders answering this question. According
to tlie Natomaa reporl of Deamber 31, last, a few
have been leased for a '-ash rental of $10 per acre,
ii the Larger amount leased is at $2.64 per acre. If
all the irrigated and reclamation land be leased at $10
i In return would still be less than
enough to pay ii per rent interest on the valuation
placed on the reclamation lands alone. This would
ii necessary for the gold-dredging properties, val-
ued bj the directors at $14,000,000, bu1 now estimated
in contain about $10,000,000 net, of which the present
value is perhaps half thai amount, to care for amor-
tization.

It is difficult to see liow the bonds are ever to In-
paid in full except by the fortuitous influx of an un-
heard of number of land buyers willing to pay top
prices and do it quickly. This may he too pessimistic
a view. If so. it is because adequate engineering studies

either have not been made or their results are not avail-
able to bondholders. Indeed, what is most wanted is
more lighl upon the whole matter. The reorganization
committee may indeed be proposing the only possible
plan, but the Company is paying dear for a relatively
small amount of money, and it is probable thai if the
whole property were examined and full information

given, competition would be invoked and better terms
could be made. At any rate, bondholders are now very
much in the dark and are asked to ad upon informa-
tion that is entirely inadequate. They should look be-
fore they leap.

GOLD EXPORTS

The movement of over $60,000,000 in gold bars and

coin from the United States to European countries in

the past six months has given rise to general interest

and discussion. So far as this country is concerned,
this unusual movement does not seem fraught with any
profound or sinister significance. The gold reserves of
the world are a fluid medium, flowing from the points
where the pressure is higher to where it is less, and
i In movemenl in one direction at a given time may
be speedily followed by a reverse flow a short time later.
We buy large quantities of merchandise from foreign

countries: we sell even larger quantities to them in
return. Large sums must lie annually paid to Euro-
pean investors tor interest on their holdings in this
country, and if the investors wish to leave the money
her* for investment in new securities, or it' they wish
to 'take out in trade' our indebtedness to them, inter-
national dealings will lie marked by large exports of

goods from the United States and small exports of

specie, ibi tin- other hand, if European investors re-
duce their purchases from us and show g desire to
receive their interest return in specie for employment
at home, merchandise exports will fall off and specie
exports will increase. Such a situation Exists at the
present time. The uncertain effect of the basic Legisla-
tion affecting industry now under consideration at
Washington. |he possibility of a crisis this autumn

when fin- movemenl of crops of record size makes its

annual strain on the financial situation here, and the

unfortunate experiences which European holders of

American railroad securities have gone through in the

past tow years, all tend to discourage investment of
European money in the United States at this time, while

imports of European merchandise' have been stimulated

by the recent decrease in the import tariffs.

There arc other factors in Europe which enter into
the situation as Well. The specie hoi. lings of the banks

in Russia have been increased by $92,500,000 in the

past year, standing at $902,113,00 -May 21. The

holdings in Germany have been increased to almost an
equal amount and now stand at a sum approximately
one-half that of the banks in Russia. The adjustment
of the Balkan trouble resulted in the practical removal
of Turkey from Europe, but at no marked advantage
to Russia: a country which urgently needs to gain
an outlet to the Mediterranean sea. through the absorp-
tion of the territory which stands in her path, or
Otherwise. Russia has recently made a tremendous in-
crease in the peace footing of her army, and there are

those who see in these events the imminent possibility

of war between Russia and Germany, the latter coun-
try being a strong factor in the political readjustment
recently concluded in the Balkan peninsula. This view-
is certainly not without the bounds of possibility,
though we profess no such familiarity with the inner
workings of the chancelleries of Europe as would per-
mit us to express a well informed opinion. Austria
has also made large increases in her specie holdings.
possibly also in preparation for war. as Austria would
inevitably be drawn into such a conflict. In France a
national loan of $350,000,000 has been authorized to
provide, among other things, for military expansion, and
the French banks have been building up their gold re-
serve in preparation. -\11 in all. Europe does not seem
at the presenl moment a desirable feeding ground for

the dove of pet In the face of these conditions,

the reserves of lb,- Hank of England have shrunk some
$6,000,000 in the past year, although the receipts of
liar gold and coin in England for the year ended in
April amounted to $300,000,000. The view generally
expressed in New York financial circles is that the pres-
ent movemenl of gold to Europe practically came to an
end with the shipments of specie which arrived in Eu-
rope in time for the interest payments due on July I.
iiiosr who think the business situation in America one
of extreme difficulty have at least the consolation that
the clouds on our financial horizon are not so threaten-
ing as those on the other side of the Atlantic.

July 4, 1-1 i

M1\IV. \\l> m II \ I II h 1'KI SS

Mefthodls ©IF Tefitimag Placeir Gravel

Mr w. J. rtAoroRD

In tin- bananas days "i placer mining, when onl}
■ueh pavel traeta as were of 'picture book' value were
worked, with a do greater monetary outlay than was
pa ne a a a r j to build a few aeetioua of sluice box and
purchase loots, a verj rough pan sampling sufficed to
determine whether the gold waa presenl in paying
quantitiea Theae days, however, have passed and the
present <la> placer miner is forced t" consider the lower
grade gravels. To operate low-grade deposits at n
profit requires the erection <>r purchase of plants cost
inc man} thousands of dollars. With large sums in-
volved and the lownesa of grade to be considered, the
examining engineer of todaj lias a much greater rc-
Bponaibilit) thrust upon him. To meel t li«-^,- new eon
ilitimis more scientific and accurate systems for testing

have l n evolved, which are the outcome of years of

experiment and experiei Where, in the early days,

were Btated in dollars, the} are now estimated
in cents per cubic yard, and a few cents difference, one
waj or the other, may mean the success or failure of an
enterprise involving the investment of large sums.

On many occasions I have been asked Bnch questions
as the following: <>f whal degree of accuracy are
gravel tests t' 'How closely will the estimated gravel
value, as determined by examination, check with actual
value, as found l>y operation?' To answer questions of
this nature witl t an intimate knowledge of the tract

tn lie tested is to a certain extent impossible. In such

case, one can but refer to the results of operating con-
cerns, each operation having its own peculiar condi-
tions.

Estimated ami Actual Value
Before proceeding with a discussion of this subject.

it would probably be advisable to explain the sense
iii which the terms 'estimated value' and 'actual value'
are used. By 'estimated value', is here meant the value
per en hie yard of the gravel as determined by a series
of tests. From this is deducted a certain varying per-
centage for loss iii operation, the result being the esti-
mated value of tin' gravel in dollars and cents. 'Actual
value' is tin' value per cubic yard as computed from tlie
gross bullion return'and the yardage treated.

Theoretically, 'estimated value' and 'actual value'
should be the same, but in practice there is found to lie
a varying percental.''' of difference. This variation is
dependent upon many factors, one or more of which
may he the determining cause of the variation in any
given case, such as local topography, character of metal
content, character of gravel, presence of water, and
methods of testing. Yet. even with these changing con-
ditions, a certain uniform ratio should be maintained
by adapting the method of testing to local conditions,
that is. the method of testing one tract of gravel would

not ueccmaril} apply to another, It is here that the
personal equation enters into the question; the expor

iciice uf the examining engii r, together with Ins

faculty forjudging conditiona, goes a long way toward
reducing tin- difference between 'estimated' and
'actual' value. I shall briefly review the several meth-
ods general!} used in testing placer deposits, and at
tempi in show what degree uf reliability ma} res

lily be eX| ted from each, as inferred from experiei

in placer mi g examinations in both North and South

America,

Put i.imin h;v P i\ Testing

This method is used primarily for determining the

•_'ulil eon lent ul'a ura\ el deposit to learn if it will .just ily
further and mure careful testing.

The onlj tools necessary arc a standard gold pan. a
pick, a shovel, and a tWO-foot rule or steel tape line.

The fundamental requirement, however, is one that the
engineer himself must possess, namely, the knowledge
requisite to estimate accurately by observation the

number of pans of gravel that will equal a cubic yard
in place. The number of pans, filled evenly with the
top, which will constitute a cubic yard in place varies
from 20 I" 160, depending upon the degr I' coarse-
ness "I' fineness of the material. About loll or 160 pans
of sand are required to make a cubic yard, while for a
ver} coarse gravel, not more than '.'0 or 30 are re-
quired. All average gravel runs about (ill or 70 pans to
the cubic yard. It is upon this point that the secret of
obtaining accurate results largely depends, and this
knowledge comes only from field experience and ex-
periment. The bank in question may be dealt with as
a whole and a figure representing the number of pans
to tl ubic yard determined, or if there is a very de-
cided variation in the character of the material, as is
sometimes the case, it may be treated by strata, in
which event each stratum will have its own factor to
be applied when that particular stratum is tested.

The method of procedure is as follows: ('lean off a
face on the bank, say two feet in width and extending

fi bedrock to top. removing the "ravel to at least

6 or 8 inches in depth. This is a precaution that should
always be observed if accurate results are desired. In
case of leaching or surface concentration, this method
insures more correct results, and if there should have
been an attempt to salt the gravel, it tends to prevent

fraud. For this work, in some eases, it will I onven-

iciit to have a ladder, or it may even be n ssary to

use ■, rone, allowing one's self to be raised or lowered
from above. If the test is to be rough, the samples may
be taken in a succession of steps at easily accessible
points. Should this method be used, care must be taken
noi to skip sections of the bank or to overlap, a feature

MINING AND SCIENTIFIC PRESS

Inly 4. 1!H4

which it is especially uecessarj to guard against. Hold.
owing to the manner of its deposition, has a very
marked tendency to lie in longitudinal streaks, more
<>r li-ss paralleling the bedrock. These streaks may
sometimes be exceptionally rich and yet be not more

than one or two inches in thickness, hei missing or

overlapping will give false results. It is advisable
when removing the outside gravel to leave the face as
smooth and even as the character of the gravel will
permit, lints greatly facilitating the taking of the sam-
ple.

S win.ixo

Wi . it tlie gravel face lias been satisfactorily prepared.

start on bedrock and measure up one foot, putting a
small wooden peg at that point, then, holding the pan
• ii tie- bottom so as to eateli all looseneil gravel, start
to remove the sample by menus of a small pick, work-
ing from the bottom up to the height marked by the
peg. The sample should he taken up and clown the
first foot section in as nearly a Btraight line as the

formation will permit, care being taken that an equal

quantity of the gravel is removed from all portions
alone the line of the cut. This method prevents ob-
taining a false result which would ensue from taking
too much or too little of any rich streak that might be

present. Take sufficient gravel to fill the pan evenly,

allowing all rocks which may he included to remain
in the pan.

The full pan of gravel is then taken to ; nveltient

pool and carefully panned, colors being counted.
Record tie- number of colors, position of the sample.

and the estimated number of pans to the cubic yard for
that particular stratum. Sample the next foot in a
similar manner, continuing the work until the hank has
been sampled a foot at a time. When the sampling
is Completed, a small cut will have been taken from

top to bottom.

If the gravel in the hank is fairly uniform and is to

he treated as a whole, the colors from each successive
foot may be put together in a small vessel for weigh-
ing, but if on the other hand, the bank has 1 n divided

into several strata, all colors from the same stratum

should be put together, each stratum being figured

separately.

The calculating of results is simple. The gold ob-
tained is carefully cleaned and weighed and its value
in dollars and cents determined. This sum is then
divided by the number of pans taken and the result
multiplied by the estimated factor which gives the
value per cubic yard for the bank. The following is
an example taken from actual work. The bank in this
instance was in ft. high, ami from it 111 pans were
taken. The "old recovered weighed 30.4 mg. with value
for this locality of 1.76c. orfl.lTlie. per pan. T estimated
70 pans to the cubic yard, giving a bank value of 12.3c.
per cubic \ aid. The following limy be given as another
example in which it was found necessary to sample
the separate strata owing to a very considerable dif-
ference i • i the character of the gravel. Height of bank

35 ft. divided into two strata of 14 and 21 ft. in thick-
ness: for tin' 14-ft. stratum 40 pans to the cubic yard
was allowed and 70 for the 21-ft. stratum: weight of
gold obtained from the 14-ft. stratum 160 mg. with
value of 9.25c; fourteen pans were taken giving a
value of 0.66c. per pan to which, applying the esti-
mate, | factor of 40. ga»e a stratum value of 26.4e. per
cubic yard. 9ot the 21-ft. stratum the gold recovered
weighed 6-1 mg. with value of 3.7c, giving a pan value
of 0.18c, multiplying this by 70 gave a value of 12.6c.
per cubic yard for the stratum. Now. to obtain a eor-

I t bank value the above results are averaged taking

into n< unt value and thickness of strata as follows:

14 X 0.264 = 3.696
21 X 0.126 = 2.646

35 6.342

6.342 : 35 = 18.12c. per cubic- yard, value of the hank

from top to bottom.

This method of testing, while rough, if carefully done
will give fairly accurate results, as evidenced by the
following: On one occasion I sampled a 17-ft. bank
by the above pan method, obtaining a value for the
gravel of 6.5c. per cubic yard. A few days later this
same bank was tested with a carefully measured cut
from top to bottom, washing, by means of a l ker

127.8 cu. ft. of gravel (measured in place) from which

was obtained a result of 6.6e. per cubic yard. On sev-
eral other occasions where I have checked my testing.
results have been obtained which checked within one
or two cents. Bh owing that a fair degree of reliance
may be placed on this method of preliminary samp-
ling.

Advantages op I* \n Testing

Pan testing is particularly useful in that it tends
greatly to reduce the time and expense necessary for
making a preliminary examination of an extensive

territory. It enables an engineer to eliminate quickly
those areas which are of too low grade to be considered.
Tin- saving in expense alone makes this method worthy
of special consideration. I found, in the tropics, that
with an assistant and possibly a native to carry pick
and shovel. 1 could go over and test an extensive area
of gravel in a single day. determining what parts
should be abandoned and picking out those worthy of
a more thorough examination. Often it would be
found that whole areas did not deserve a second visit.
To prospect this same area by one of the more elabor-
ate methods would necessitate Hie transporting of rock-
ers, tools, and other paraphernalia to the scene of the
work, the employing of from five to ten natives with
one or two extra white men to make the cuts and run
the rockers, besides consuming from five to ten days
in the performance of the work. The result of all such
labor, time, and expense would merely prove that the
gravel was not of sufficient value to warrant con-
sideration. It is needless to demonstrate further the
saving in dollars and cents thai may be effected by

• ill* 4, fin

MIMV. WD m II \ I II K |»|<l SS

nigh know ledge .'i ihr pan Ihod of prelim

Iraonfl tli. in.. i.- thorough anil reliable methods nl

t ill.- next in order i- somewhat analogous to

ui method, though eoiudderably more exact in ik

It i> thai of meaaiired nits. I nder ortliimn

ronditiona, if rarefultj done, thin method w probably

ih. moat trustworthy, Riving result* as accurate «s

ih. .v. obtained from aotnal placer operations By tins

method the gold contained in ■ known volui t

gravel, meaaiired in place, i- aaoertained by careful

ng. There are ineertain factors to determine

or eatimate such ;^ the expansion in volume of gravel
ou1 of place, and bj reason of the fact that the figures
For gold obtained are baaed upon the gravel deposit,
in titv. dependable reanlta are by no means bo difficult
t.. r. aeh,

\. • m m \ of tiii. Method

The degree of acenraej is commensurate w ith the size
..r the sample, yel judgment must be used to keep the
volume of the sample in proportion tu the size of tlu>
Imnk exposure, with due regard also to the item of ex-
pense. Beyond certain limits, the results from an exces-
sively large sample may not be more accurate than
from one of smaller proportions, while to handle the
largi r sample will entail considerably more expense.
The m/.- "f the sample t<> be taken will also greatly de-
pend upon the character and distribution of the gold
• ■•>iit.-tit. The .-i\ <-i-;ilt'- assay of a gravel deposit in which
the gold is fine and evenlj distributed throughout, may
he determined by a much smaller sample than one in
which the gold occurs as nuggets which are perhaps
widely disseminated. When there is a reasonable donbt
as to the volume i>f sample t" be taken, it is far better
for the examining engineer to take the sample too
large than to run the risk of obtaining False results by
taking too small a sample.

The volume having I n determined, the bank is

cleaned off from top to bottom as in the method of pan
sampling, a sufficient width being taken to leave a
Foot on either side of the proposed cut. The gravel is
then removed for washing. Too much care cannot lie
taken in picking out the sample in order to keep the
cut of uniform size ami to prevent caving or break-
ing of its sides. It' the gravel is fairly compact and
homogei ns. little trouble will la- experienced. If,

on the other hand, the gravel is loose, sandy, and in-
terspersed with large sized rocks having a tendency to
loosen easily and fall out, some difficulty may be en-
countered.

Assuming that the hank- to la- sampled is :{."> Ft. in
height and that it has been decided to take a cut From
top to bottom 2 ft. in width and 1.5 ft. in depth, begin
on bedrock picking out the gravel, working from the
centre of the cut toward both edges, but not approach-
ing to within more than 2 or 3 in. of the final width
and depth. This work may he done rapidly. When
a considerable quantity of the gravel has been removed
begin with great care trimming. Little bv little the

gravel i* i. v.- I until tli.- exact two feel ill width baa

•lit lined Willi H depth lllto tile bank ■•! 18 III. lies

For accurate work it will he t id advisable to make a

templet From a piece of i .1 Tins, in the hands of

a careful workman, will give verj its Borne

times in i ring gravel a large sued boulder extend

mil; partly into the cut ma.\ be encountered, a portion
of it being Hrnil) imbedded in the surrounding gravel
To rem. .v.- tins boulder would probably bring into the
sample a quantity of excess gravel. In such earn
is adviaabli to pick carefully around the pari project

lllg into the eut ami allow it to remain, because, as can
In- readily seen, this will nol in an] way affect the re-
sults of the test. Iii this manner proceed to the top, at

all times keeping the depth of the eul exactly is inches.

If the hank is higher than can he easih reached, a lad-
der or rope may be used to work from. When taking
samples from a high hank it will be found advisable

to use a eanvas sheet spread at the bottom, as the

gravel dropping from such a height will have a ten

deiiex to Scatter. Often it is a good plan to use two

pieces of eanvas, one at the bottom and the other hung
on the face of the hank over the eut. This precaution
confines the loose gravel to the cut and it will drop to
the bottom as through a pipe or shoot.

In soi ases owing to configuration of the hank, it

iiiii.v he impossible to make a continuous cut from top to
bottom in which event it can be taken in sections; care
being used, as previously mentioned, nol to omit or
overlap ally portion of the hank.

The gravel as removed is carefully washed by means
of a rocker. When all gravel has been washed and

the cut carefully checked as regards ; nracy of meas-
urements, the recovered gold is cleaned, weighed, and
the gravel value calculated, as follows:

105

•u. ft.

Cut 1.5 X 2 X 35 =
105 : 27:: 20.7 : X.

X = 3.3e. per cu. yd., hank value.

Results by this method are as reliable as any that
can be obtained, if work has been carefully and scien-
tifically done. A deposit of gravel tested by a suf-
ficient number of these cuts so as to obtain a fair aver-
age can be relied upon to yield results that will check
very closely with those obtained by actual mining oper-
ations.

Deposits Suitable to this Method

The particular method of testiiiL' described above is
only applicable to such deposits as have a fairly per-
pendicular hank exposure from bedrock- to grass roots
such as may be found on the stream side of bench de-
posits. Where no such exposures exist, resort must be
had to another form of the measured cut system — that
of shaft sinking. Where accurate results are desired,

this thod is limited to such areas as have little or no

bedrock water. To sink a shaft where from two to
three feet of water may be encountered on bedrock and
to obtain results that will even approximate true con-
ditions, is almost a physical impossibility: therefore.

MINING AND SCIENTIFIC PRESS

July 4. 1!<14

when this condition exists, other methods which will be
considered later should be adopted.

When testing by means of shafts, one of two systems

may be used. The shaft may be sunk to bedrock, keep-
ing it to an accurately measured size and washing all
the gravel obtained ; or, the shaft may be sunk to bed-
rock and made of such size that it can easily be worked
in. When bedrock is reached, measured cuts can be
taken from top to bottom in the sides. If all the gravel
is to be washed, it is customary to sink the shaft of
such dimensions that every three feet in depth will
represent a cubic yard in place. Circular shafts should
have a diameter of 3 ft. 5 in., while rectangular shafts
are made 2 ft. 3 in. by 4 ft.; both of these sizes,
while small, are sufficiently large fur an experienced
shaft man. Of the two styles. I prefer the circular
shaft, as the gravel will stand better and I here is less

trouble from caving. Where timbering has to be

done, the rectangular shape will, however, be found
preferable. For the circular shaft, a templet made
by nailing together in the form of a cross, two pieces

of wood measuring 3.4 ft. in length is convenient.
This templet may he suspended from the centre bj

a cord and can be raise, 1 or lowered in the shaft,
thus keeping the shaft of a uniform size as sinking
progresses. Care must be taken not to gouge the
sides, but the shaft should lie kept as symmetrical as
possible at all times. When bedrock has been reached.
it should be thoroughly and carefully cleaned. It is
good practice to sink a foot or two into the bedrock in
order to make sure that all gold has been recovered. All
gravel as removed is carefully washed in a rocker. The
washing should be kept abreast of the sinking in order
that, by obser\ inij the returns, the depth and position
of pay-streaks may be noted. The recovered gold is
cleaned, weighed, and results figured. The depth of
the shaft gives the yardage contained in the sample.

Prospect Sb upts

When cuts are to be taken down the sides, make the
shaft of such size that it will permit of rapid sinking.
For this method the rectangular shape will be found
more convenient than the circular. After the shaft
has reached bedrock, carefully remove all loose ma-
terial ami pick down the sample from one of the sides
or ends, keeping the cut to exact dimensions as pre-
viously described. The sample is hoisted out by bucket
ami carefully washed, the value per cubic yard being
determined as already described. If the testing is to be
thorough, two cuts may be taken, one from either end.
or one from a side and one from an end. or any such
combination as the man in charge may elect. The work
of taking the cut can be greatly facilitated if. when
sinking the shaft, care is taken to keep the side or end
from which sample is to be taken as true and uniform
as possible.

Of the two methods, that of washing all the grave)
removed, is the more reliable, owing to the larger
volume of the sample and the proportionate reduction
in error din to possible loss of gold. Against this, how-

ever, must be considered the increase in time and ex-
pense incident to the handling of a greater volume of
gravel. Furthermore, if the gravel has a tendency to
Loosen and cave, it is sometimes impossible to pick an
accurate cut down the sides; often a circular shaft, if
quickly sunk, will stand sufficiently long to reach bed-
rock and obtain the complete sample. In recent testing,
in a somewhat loose and sandy gravel, I found in every
case that a fairly uniform circular shaft could be sunk
to bedrock and a complete sample obtained where my
attempt to take a cut in the sides resulted in extensive
caving and the ultimate loss of the shaft.

Another form of testing which should be properly
classed under the head of measured cuts, is that of
bedrock driving. This is applicable to bench deposits
where it has been determined that all gold lies in tin-
foot or two of gravel resting on bedrock. To prospect
such a deposit across the full width of the bench by
pits, would entail the sinking of several very deep and
expensive shafts, while much more reliable results can
be obtained at much less expense by driving on bed-
rock. Care should be taken in all such cases to have the
drift at right angles to the line of flow, otherwise er-
roneous results will be obtained. As samples of this
nature are necessarily large in volume, the same degree
of care in washing and handling is not required is tor
those of lesser volume. To save time, the gravel may be
washed by means of a small and carefully constructed
series of sluice-boxes, the boxes being of sufficient length
to ensure complete recovery. This method very closely
approximates actual operating conditions. In obtain-
ing results by this method, it is the general practice to
base figures upon the value of gold recovered per square
yard of bedrock uncovered, from which, when the aver-
age height of gravel on bedrock along the line of the
drift has been determined, the value per cubic yard is
computed. The one measurement to lie watched in this
work is the width of the drift. This should be uniform
and great care should be taken not to gouge into the
sides and thus obtain an excess of the rich pay-streak.

The following case, from my experience, will serve as
an example of the above method. There was a bench
deposit which on the stream edge measured 24 t't. in
height, increasing rapidly but uniformly to 39 ft. on the
inside. The gold lay in a streak on bedrock varying
from 18 to 24 in. thick, everything above this streak
being practically barren. It was obvious that the most
accurate and the quickest way of testing this deposit
was by means of a bedrock drift at right angles to the
line of flow. A drift of uniform width (4.5 ft. was
maintained and all gravel removed was washed through
sluice boxes which were cleaned up every evening.
After driving 52.5 ft. the other rim of the bench was
reached. From this drift gold to the value of $131.40
was obtained and 26.25 sq. yd. of bedrock uncovered.
which yielded assays of approximately $5 per sq. yd.
of bedrock cleaned. By survey over the line of the
drift. I found the average depth to lie 10.3 yd., which
gave a value to the gravel in the deposit of 48.5c. per
cubic vard.

I I'M I

MIMV. WD MUM || |, l-Ki ss

rook Kr«\.-i ..' ramp) or thai

or in which tli.- gravel

'■• admH of thafl linking, the before <!•■

i in.tli.i.K are nol applicable and raaorl most be
• • meehanieaJ nn-iin-. for obtaining aamplea The

mual widely usi-,1 thanical method adapted to this

kind •■! work i> tint ..f cliurii drilling. Much bai al-
i » riii. n regarding this method of testing
depoait*. and the proeeaa will nol I"- deaoribed
in detail •

01 Pom i ■ Dan u

Bristly, the ilrill method sists of forcing a pipe or

rasing through the gravel to bedrock, removing the
I from the interior as the easing descends, the re
moved gravel being carefully washed and gold reco>
••nil. Por this work two sites .'i' eaaing are employed,

■ •I' 4 and 6 in. diameter, immh; of greater .lb ter be

ing rarelj used. Tin area enclosed bj tl atting Bhoe

on tin- end of ;i piece of 6-in. casing varies from about
0.196 i.i 0.25 dI' :i Bqnare foot, which is equivalent ap-
proximately to the 0.000005 pari of the area of an acre,
;m infinitesimal quantity. In tin- sunn- way, the volume
..t' gravel removed from a drill-hole is relatively very
small iis compared to the volume of gravel contained
in .in acre, which goes to show what a very small pro-
portion of tin. metal contents of an acre one hole would
Should the character of the gravel in the acre
be entirely homogeneous, with gold distributed through-
out every part and all particles of equal weight, then
out' hole t.. a given tract would afford an accurate de-
i. tiiiinatii.il of the gravel value for that tract, as every
Other hole put down would In' lint a repetition of the
first Such conditions unfortunately rarely, if ever,
exist. A hole might descend into an almost barren
region which would not. perhaps, be inure than 7 or 8
in. Ins in diameter, while the adjacent gravel would
he of high grade; or. on the other hand, the pipe in its
downward course might enclose within its 0.25 sq. ft.
ot area the only existing nugget within the whole tract.
In the one case a negative result would be obtained
where it should be high, while in the other case, a high
result where it should be low. This brings out a point of
prime importance, namely, that the value of the gravel
in any triven tract cannot be determined by the results
from individual holes but must be based upon an aver-
age of results from many boles. T have in mind n
piece of dredging ground now under operation which
aptly illustrates the above. Tin- gold in this property
was coarse and nnggcty. with areas of high and low
value. During the dredging operation careful Match
was kept to determine, as closely as conditions would
permit, the degree of variation between the actual value
88 shown by the dredge operations and the estimated
value as determined by the drill tests. Tt was found
that this variation in a great many eases amounted to
10c. to 15c. per cubic yard as shown by individual drill
boles, yet the dredge returns for the whole area gave
an average value per cubic yard which approximated
within 2% of the average value of the gravel as com-
puted from the drill tests.

In <■ preliminary drilling it is oual irj to

holes in I s sometimes BOO or unki ft. apart with 800

"' I '■ feOl between the hole This would DM

average ..t two holes or teas to the tore In the final

drilling, hobs ma.\ be placed ')" tl apart with a .lis

'•" between lines of L'l N I ft Tills Would o|il\ make

Bible 8 holes to the acre. Vet su.'l, is (lie law of

Compensation that an average of all holes will cue a
lairU reliable idea of tl,, gold tent of the gravel.

The average value shown by the eight holes to tin- acre

would be far more accurate than that of the two to

the acre. The degree of ro 1 1 a 1> 1 1 1 1 > of r.suits obtained
by drilling a given tract is largely dependent upon the
number of holes drilled in that tract.
Besides the above, another feature greatly affeota re-

suits and that is the amount of care and thought used
in putting down holes. In drilling placer deposits,
owing to their generally shallow nature, it is easy
enough to put down a hole to bedrock, but to put that
bole down in such a manner as to obtain at all times
an accurate sample of grave] for every foot is quite
another matter. Qreat care must be taken when in
tight or hard driving ground, not to force or push out of
the way gravel which rightfully belongs within the
sample or. on the other hand, when in loose running
ground, not to include gravel which does not belong in
the sample. These are points which must be carefully
watched and steps taken to prevent their occurrence
or. if unavoidable, the excesses or discrepancies in
volume noted and allowed for when final computations
arc made. It is here that the skill and experience of the
examining engineer enters into the reliability factor.

Use ok thk Hand-Drill

Much consideration also must be given to the type of
drill used. Some machines, because of their method of
operation, naturally give more trustworthy results than
others. Of the types now on the market, probably the
most reliable, and one which more nearly approaches
the ideal method of sampling, is the hand drill. This
with its rotating cutting shoe, which bores into the
gravel descending by its own weight, comes as near
cutting out a true cylindrical sample of the gravel from
top to bedrock as it is possible to obtain. Steam ma-
chines which depend on heavy blows to drive down the
casing, with the accompanying dropping of the heavy
stem, cause such a loosening and disturbance in the sur-
rounding gravel that an increase in the volume of the
sample extracted is nearly always found. However, it
has been demonstrated that in a carefully drilled piece
of placer gravel, the estimated gold content in dollars,
as based on drill-hole results, will approximate within
less than 5% of the actual bullion value as extracted by
the dredge.

In conclusion, when asked the degree of reliability
to lie placed on any placer examination, it is necessary
to first know the general characteristics of the deposit
to he examined, secondly, the method of testing to be
employed, and, thirdly, the care and experience of the
examining engineer.

MINING AND SCIENTIFIC PRESS

July 4. 1914

nivffr-iMo--. i

THE WATKR rK'»\r Al KKTC IIIKAX. ALASKA.

JisuHinig Revival nna ftla© KefocMIs&ini Dnslbriidt. Alaska

B> £. £. HURJA

The Ketchikan mining district, southernmost of
Alaska's mineral belts, comprises 9370 sq. mi. of terri-
tory, Hi' which about half is represented by islands. The
largest insular bod} is Prince of Wales island, the next
is Revillagigedo island, the one with an area of 2800
and the other with 1120 sq. mi. Although prospectors,
attracted by the Klondike and Juneau goldfields, have
passed through the Ketchikan district for nearly two

decades, no real exploration was dune until aliout
1900. So far as known, no attempt was made to seek
mineral wealth daring the Russian occupation of the
territory. Charles Baranovich, a Russian merchant, is
reported to have prospected for copper near Kassan

village SOOn after the American occupation of Alaska.

but nothing further is known, .lames Bawden, still a
resident of Ketchikan, discovered workable deposits of
gold on the eastern side of Annette island in 1892.

William Barnard found gold and copper near Kasaan

village in 1893; other discoveries were made in 1893
and from 1899 to 1901 there was considerable mining

activity. Many hundreds of claims were staked.
Ketchikan is the supply centre for the entire district.

It is situated no the west side of Revillagigedo island
and nn the cast side of TongaSS Narrows. It is 660
miles northwest of Seattle and 240 miles southeast of
Juneau. Salmon canneries, sawmills, fertilizer factor-
ies and other minor industries supplement ininiiii.'. It
has a number of stores, is a port of entry, and has a
population of about 1500.

Copper in the Ketchikan district occurs in irregular
lenses and is mined generally bjJ following the orebody.
The bulk of the copper ore is ehalcopyrite and cuprif-
erous pyrite. accompanied by magnetite, pyrrhotite.

anil other sulphide minerals. Development has
slow and there are not many producing mines in tin-
district. Abundant water-power is available on nearly
every island, while the resources of hemlock, sprue,-,
ami cedar furnish ample timber for present needs.

The oldest regular producer in the district is the
Jumbo property near the head of Iletta inlet, on the
west coast of Prince of Wales island. It is operated
by tin- Alaska Industrial Co.. of New York, of which
Charles A. Sulzer is manager. A depth of 800 ft. has
been attained on tin- orebody. with a winze put down
'2<io ft. below the lowest working level, No. 4. Ship-
ments to the Taeoma smelter are being made at the
rate of 1000 tons per month. 'Pin- Copper Mountain
group of claims at Iletta inlet have been taken over
by the Alaska Consolidated Mining & Smelting Co.. of
Dulitth. .Minnesota, and are being developed under the
directif f R. L. Kilpatrick. superintendent. A smelt-
ing plant of 250 tons daily capacity has been idle since

1H07. Prospecting is being done on the Red Wing

group of claims, near the entrance to Iletta inlet. Small
shipments of ore from tin- vein deposit on the Red
Wing claim have Keen sent to the smelter at irregular
intervals since 100:i.

Kasaan B\v ( i.mms

Rush & Brown, operating on & group of claims near
the head of Kasaan hay. have been shipping at intervals
since 1906. Regular shipments are now made at the
rate of 300 tons per month. A depth of 184 ft. on the
orebody has been increased by 50 ft. during the pasl

year. Ore is being mined from both the magnetite and
sulphide oreliodies. A railroad 8% miles in length eon-

Julj I. !••! I

MIMNi. WD N II \ I II |> CKI SS

tin- linn- « ii ml w harf. Tim

ro •- lui mt tit tin- ti< I

veloped \«ii\. gold nml •-lialiiip.il i 111 tin-

1 or* in 'I ■ property, A shipment is

being prepared now for smelting Devel

nl wink mi III.- Ml Andrew prop

lit the Inn. I m l.a> 'JT

miles in. in K< i. -iiikaii. ".is resumed In
January, under llie din w .1

Kori ii. m. I. ni The rlaiuut are

being, patent The property

is owned by Ihe Andrew estate of Bng
Inn. I ami lias made numerous shipments

V ible tram". f| long ■■ ii'. 'Is

the mine »itl> Ihe wharf. si\ different
nml irregular ore masses have been
opened.

I 1 ••■ t" ill.- advenl mt>> ill.- Ketchikan
district of the Grnnbj Consolidated M. 8.
' " . work «ill be resumed on the
Mamie group on Kasaan peninsula, near
Hadley, :io miles northwest of Ketchikan.
The Qranby company lias boughl and
pniil for tlir property, .-ni<l lias started to
place the buildings and trams in condi-
tion for a resumption of active develop-
ment. A contracl t.> explore the claims
with a diamond-drill lias been made. The
other acquisitions of the Granby company
in the Ketchikan district are the It and
Dean mines, near the head of Kasaan bay,
three miles from Kasaan. The It prop-
erty is equipped »itli a steam power-
plant, ore bunkers, dock, and train. The
new owners expeel t.i start work July 1.
Tin Dean •.'roup, adjoining the It. will !«•
worked in conjunction with the Tt. Pour
hundred feel of development work has
been done on tin- Dean and a depth from
the surfi of 80 ft. attained.

'I'm: V w.i-ui uso < 'i.wms

Plans to resume work on a large scale
(,u tlir Valparaiso group of claims, a mile
and a half Ijroni Dolomi, and owned by

the I'ri ton M. A: M. Co., have been

completed and are being carried out un-
der B. A. Kai'illiv. manager. On .rum'
11. fifteen i.ms of machinery left Ketchi-
kan for the property. Work on the
claims was discontinued in the fall of
19J3 because of water; bul during the
winter a 6'00-ft. drainage adit was driven,
so the mine again is unwatered, A five-
drill water-operated compressor will be used in supply-
ing ore for the 10-stamp mill, which is operated in con-
nrction with a Chilean mill, giving a capacity of 50
tons per day. The ore is a gold-hearing quartz in a
fissure vein.

The Ala- 1.1,1 ,.| l.om!

■ubatoiarj ul tin i. 1 Proprii I

Vuatralia, hai leqnirrd |hr Old Oloi | group

••" s " ' I p> miisiiia 2! lea north

ENTRANCE in Rl sir ami hkown mini:.

MINK TKKMINAI. (II BOSH AND BltOWX ll.UI .IIUAH.
RAILROAD TERMINAL AT HEAD or KASAAN BAY, I'imm I 01

ul Ketchikan, from .Martin Bugge and associates. The
final payment was made in February. J. T. Hollow, of
London, engineer for the Company, is now at Ketchi-
kan, preparing to install the prospecting plant on the
claims. The improvements include a three-drill com-

MINING AND SCIENTIFIC PRESS

July 4, 1914

pressor and ;i dam for the power-plant. Forty thousand
dollars has been allotted bj the Company for prelimi-
nary prospecting. Work has been resumed 1000 ft. be-
low the old adit. Fifteen hundred feet of adil has
been driven and two small low-grade orebodies have
been cut. The adil will be continued 600 ft., to cul
tbe main orcbody. B. T. Leahy is superintendent for

the Company. The ore is fr milling. The Alaska

Venture Syndicate lias taken an option cm the Gold-
stream mine on Qravina island, three miles from
Ketchikan, and is preparing to resume development
work on the claims. Owing to a lack of funds, the
Moonshine silver-lead property, on Cholmondeley
so mil. owned by the Sunshine Minim; Co., is idle. One
hundred and fifty tons of ore is on the dump awaiting
shipment.

A thorough sampling and examination of the Julia
group and Humboldt claims, on 12-Mile arm > >f Kasaan
bay, 40 miles from Ketchikan, lias been made by engin-
eers of tin' Alaska-Gastineau company. The property
is owned bj M. K. and J. H. Bodgers and has been
operated for a year and a half nnder bond and lease-
by M. M. Reese and II. Webber. The vein is from two
tc. 1J ft. wide. A small compressor plant aud a five-
stamp mill, both operated by water-power, are at work
on the property. Mr. Reese is now at Juneau, con-
ferring with the Alaska-Gastineau company officials
over the possible sale of the claims.

The Crackerjack Property

The Crackerjack group of gold claims, but n ntly

out of litigation, and which has 1 n idle for a number

of years, is being developed by the owners. James

Bawden and Morris McMicken. The property is a mile
north of the Julia group. The vein has a width of
from 2 to 14 ft. and assays from $8 to $15 jeer ton.
The underground development work aggregates 2864
ft. A preliminary sampling was completed last week
by M. Nash, of Juneau, reported to be acting for foreign
capital. Adjoining the Crackerjack is the Ready Bul-
lion properly, on which a five-stamp mill is operating.
The property is owned by Webber S: McKenzie. A new
level has been opened up, at a depth of 170 ft. Three
hundred feet of drift has been driven on the vein.
Mill runs show a value of $30 per ton. The vein is
narrow. The Cascade property, four miles from ITollis.
has been examined by engineers and is under bond.
The claims are owned by ('. Radenbaugh, who has
operated an arrastre and a two-stamp mill successfully
on the property during the past two years. Eight
miles from tidewater at Hollis. and west of the Cracker-
jack group, is the Lucky Xell group, owned by G. W.
and Fred Gervais. Thirty tons of ore was shipped out
last winter to tin- smelter. Forty-six dollars per ton
was obtained, which netted +33 per ton after smelting
and freighting charges had been paid. Adjoining the
Lucky Xell group are the Commander claims, owned
by Oust Detlefson. Development in a small way is
being carried on.

O. Jacobsen and E. Olsby are prospecting the Bruce

group nl' seven copper claims, four miles from Sul/.er.
The property has on it two 60-hp. boilers, one six-drill
Rand compressor, and other machinery, as well as build-
ings. Since the dock collapsed in 1913 when a 300-ton
shipment of cue- was being loaded on a ship, nothing

has I ii done. Wright & Reynolds, working on

Xutqua lagoon on the west coast of Prince of Wales
island, have- a vein varying in width from two to six
feet. An adi*200 ft. long has been driven and 180 ft.
from the portal, a winze sunk on the vein. Work on
the big adit of the Northland Development company
at its copper property 10 miles from Craig is progres-
sing. Stoping on the nrebody has been started. Ii.

Tucker is manager.

A group of seven claims is owned by Richard
Nuckolls and Gundar Nygard on Revillagigedo island
at Thorne arm. 25 miles from Ketchikan. Open-cut
prospecting has uncovered a vein 15 to 30 ft. wide for

a distance of 3 ft. King & Gilmour are developing

the Sea Level claim, one of the first in the district, mi
which a 30-stamp mill was erected alter 50 ft. of shaft

had been sunk. Development work on the Wild West
group, owned by Mrs. Al. Smith, is going on. The
Gold Banner claim, owned by Bert Steers, has an adit
SO ft. long which cuts a vein six feet wide. The owner
is prospecting mi the surface at present.

The Gold Standard was the first claim discovered
in the Helm bay district, having been found in 11)00
by Johnson and Dyer. It is owned by Nuckolls. .1. E.
Chilberg, and ('. E. Ingersoll. A test shipment made
last month has shown a value of .+5 per ton said to
represent a face 130 ft. wide. Two miles north of the
(lold Standard is the King & Elliott group, recently
discovered and under bond for +60.000. The group
consists of four claims. Several shipments of low-grado
ore have been made from the Gold Mountain group,
owned by Richard Nuckolls. Three hundred feet of
adit has been driven along the vein at a depth of 200 ft.
Tlie vein is .'ill ft. in width. The tests show ore worth
$6 per ton. Poison & Ickis have a copper and gold
property on McLean arm, 40 miles from Ketchikan,
known as the Veta group. Two chalcopyrite deposits
have been developed for a total distance of 265 feet.

Marble Deposits

In addition to copper and gold, marble forms one of
the mineral resources of the Ketchikan district. The
Vermont Marble company owns a total area of 703.246
acres of land, and operates a quarry at Tokeen, near
the northern end of Prince of Wales island. Edward
Brown, an assayer, who has been in Ketchikan for 11
years, says he has examined specimens of chrome iron,
manganese, tin. scheelite. and platinum which were
brought in by prospectors from different parts of the
Ketchikan mining district. The United States recorder
for the Ketchikan district reports that since 1002 a total
of 4250 claims have been staked in the district, of which
a larger portion has lapsed. Thirty placer claims have
been recorded on the Unnk river, about 60 miles from
Ketchikan.

Jul; » ■•"»

MINIM. WD m II M II U l'KI SS

Dust Chambers a4 ftfine AsM©
Smdfteir 8

i. in. 15, 1912 ili' Imperial government uf Japan

: H lull requiring the Japanese smelters o> install

equipment iiu ili< elimination of swelter dual aud fume,

which in innii.v m>iiii s bad become a menace i" agri

culture and bad destroyed the vegetation in the vicin-

■ the ninelteri This loll affected Bve smelters in

Japan, nml equipment ii oon being inatalled at the dif

• .1.11 1 plants i t the requirements of thi-. law. In

the accompanying drawings there is presented two

sections through the new reinfor I concrete dmtl

chambers at the A-ln.. Copper Co.'s smelter and a pari

plan »f tl bamber building. This work, which is in

irae of construction, will probably be finished b) the

firs! of November.

At the Ashio planl there are three furnaces in opera-
tion, with .ii tput of about 50,000 lb. of copper per

day. Prom s charge made up of 11.591 ' '"• '-'' ■''■ '' r
s. 0.659 A - ; "' ; SiO„ an.l ','\ Al.n , :,
■■I i extraction of the copper is obtained. The gases
from the furnaces were formerly allowed to escape
directlj into the air. whicb has resulted in the killing
of all vegetation within an area of one-half mile radius
from (he planl and permitting of hut little vegetation
within ii mile from the plant. The volnn f SO. escap-
ing in t<> the sir is over 24oo en. ft. per minute. The
smelting planl is an interesting one since pari precipi-
tation of the SO. is effected by the use of lime water.

The flues and dust chambers are built of reinforced
concrete with but little metal exposed io the action of
the fumes. The gases from the furnaces pass through
a dust separator as shown in the diagram. Here a spiral
motion is imparted to the gases and a large per rent of
the ilnst is deposited and drawn from the cone-shaped
hopper in the bottom. From the separator the gas
passes up an incline Hue. in the lower end of which are
several hoppers in which the dust collects. At the top
of the flue the u'as passes through a series of chambers
before it enters the main chamber house. Up to this

point and in the first few hoppers in the chamber house

the dual that is collected in the hoppers will contain
copper iii sufficient quantity to make it of commercial
importance and will be subsequently recovered. In the

chamber house proper the dust will contain such a high
per rent of arsenic, zinc, and other impurities that it
will he of no value and will be discarded.

The chamber house is subdivided into many compart-
ments and the u'as as it passes through meets many
obstacles in the shape of concrete partitions, baffles,
and wires. Wires, as has come to be the common prac-
tice in the United States, will be used in these chambers
for the separation of the dust from the furnace gas.
The main building as shown in the diagram is 220 ft.
lonar by 100 ft. wide. The chambers are connected with
four stacks, three of which will be in constant use, the
fourth being held in reserve. As the sas emerges from

MINING AND SCIENTIFIC PRESS

July 4. 1914

the chamber r i il passes through Hues to the stacks,

which flues cud in dome shaped structures as Been ill

the diagram, which have numerous openings causing
the gas to be disseminated and mixed with the air In-
jure passing to the open. The stacks are connected
with fans as shown ill the cross-section, which fan blows
air into the stack around the openings from the Hue.
where it mixes with the escaping gases, liesides adding
air tu the gas before it passes mto the open, it of cuius.

reduces the pressure iii the chambers and forces the
draft. The velocity of flu- gas through the chambers will
be about three feel per second. Dampers are placed in
the flues fur the regulation of the How of gas through
the chambers. The chambers and stack are supported
on concrete piles.

Elnmraimaftainig ftftse Mosqpito

Kffective methods of getting rid of squitoes can

never In- too generally known, ami the following ac-
count by Lloyd Noland, superintendent of the health
department of the Tennessee Coal, Iron & Railroad Co.,
Birmingham, Alabama, of the methods used by that
Company, as reported in the Bulletin of the American
Iron and steel Institute, will be of interest.

A careful inspection «( all streams, ponds, pools,

and Springs, both within and for a distance of one mile

around each camp, was made early in the spring.
Anopheles larva; were found in practically all places

of this character. Cltlex larva- of several types were

found in rain barrels, tin cans, fire barrels, septic tanks.
collections of dirty water around houses, and even in

mines at sunn- points,

Tin- work accomplished consists in draining ami lin-
ing all pools and swamps, where practical- the weekly

spraying with crude petroleum or larvacide of such

pools or swamps as C! t he Idled Or drained; the

clearing of vegetation in swampy spots; the mainte-
nance of drainage ditches; and the installation of au-
tomatic oil drips at the head of sluggish streams. All
rain-barrels are destroyed or removed; tin cans and

bottles are carefully removed from all parts of the

camp; and larvacide. manufactured by the Company, is
added to water in fire barrels. General screening of all
houses, while ideal as a protection, is too expensive to be
considered. Screening has been resorted to only as a
protection against mosquito infection in houses where
there are actually cases of malaria.

Filling and draining of swamps and pools is by far
the most logical and economical method of destroying
these breeding places. The first cost of such work may
be a considerable item, but this is more than balanced
when the yearly cost of oiling is considered. Oiling
has been accomplished by the use of drip barrels or
larvacide. The Hrst. a rinsed barrel, containing 10 to
15 gal. of ordinary crude petroleum, is equipped with
an ordinary %-in. gate valve and mounted mi a small
platform at the head of such sluggish streams as are
fnund to contain larva-. The valve is cracked suffi-

ciently to allow a regular drip, rapid enough to give
a light film on all water running through the ditch.
A surprisingly small amount of oil is required for

this purpose*. It is ni ssary with such streams to

straighten the hanks to remove obstruct inns such as
trash, grass, etc., thai may hold haek I he descending

film. Very little work is required to keep these drip
barrels in proration, i weekly inspection and refilling
being about all that is necessary.

In the second method, isolated pools are sprayed witli
oil or larvacide, as the case may be. Then- are many
sprays on the market of the knapsack type that answer
excellently for this purpose. Pools of large size thai

are exposed to the action of the wind and that contain

much vegetation arc difficult ta handle because of the
fad that the oil film is frequently blown entirely away

from a large part of the pool. In order to handle

situations of this kind properly, a larvacide developed

at Panama is used. This larvacide we manufacture in
III- following way; One hundred and fifty gallons of
crude earbolic acid is heated in an iron tank having
a steam coil at 50 lb. pressure. Two hundred pounds
of finely crushed and sifted common rosin is dissolved
in the heated acid, and 30 lb. of caustic soda dissolved
in li gal. of water is added. A mechanical stirring rod
attached to the tank is used constantly during the proc-
ess. The product is prepared in a very few minutes,

yielding about three and one-half barrels of larvacide

il nst being approximately 10c per gallon.

A dilution of larvacide of one to ten thousand is
amply sufficient to kill all larva- in pools; a certain

a ml n( care, however, has to be exercised, as this

material is somewhat poisonous to stock and will

quickly kill fish. Inspectors are required to have suffi-
cient knowledge of mosquito larvae and of adult mos-
quitoes to differentiate types. Careful inspection is
insisted upon, and complaints of householders of the
presence of squitoes is investigated. The work al-
ready dune has shown surprisingly good results, the
number of cases of malaria being enormously reduced
and the comfort of the people greatly increased.

The following accounts of actual results attained, re-
ported in the Btilli tin, are encouraging. \V. (!. Kran/.
manager for tin- National Malleable Castings Co., Sha-

i-nn. Pennsylvania, reports that the greater portion of
tin- Shenango valley at one time was swampy and ma-
laria was very prevalent ; but in recent years, as a
result of the industrial development, the lowlands have
been tilled in and malaria has disappeared almost en-
tirely. "Walter Wood, managing director of R. D. Wood
& Co., Philadelphia. Pennsylvania, states that in the
ordinary development of the land around that plant
they have nalurally and properly made a point of rill-
ing in all low spots. This has been so efficacious that

the report comes from the Camden Works that "our

wharf watchmen and various boat captains at the wharf
state that they are not bothered at all" by mosquito, -s.

Many other successes of this nature have been reported

from other parts of the country.

Jab 4, 1914

MIMV. WD 8 II Mil l< I'KI SS

AMfitoraiH&im Jam tmd the Malay Timi Iiradhuisfary

Tin receul arrival in San h ■ ■ II. mv Jones,

a well kiH'wn jam manufacturer ami mining man from
Tasmania, brings to mind tin relnl s of fniil can-
Ding to tin mining. The following notea, prepared
in«<-i 1\ from ■' recent i-mi' graph,

Sydney, New South Wales show h<>» eloae the relation

i- In the November and l» mber issues ■

• I,-, were published <>n bow exper-
ience in ilir banana trade of Fiji qualifiea anybody for
the manage nl of a copper company. Tl litor of

I lit M iiiiii. i Magotin ill, I in, i „■. any illation, al

though a correspondent though! be could. In the ease
of jam and tin brilliant results in tin mining have fol
lowed tin- incursion of jam manufacturers into the

Malax Si

The world's production of tin in 1913 was 119,

ton i; inns. ni which 62,500 tons was from the Malay
Peninsula, 24,850 tons from Bolivia. 17. nun ions from
Banes and Billiton I Dutch Bast Indies), 5800 tons from
Cornwall, 3200 inns each from Australia ami South
Africa, anil 2450 tons from China. This is recovered

mostb t'i i placers in the Orient, from lodes in Bolivia.

Cornwall, and South Africa, and by lode mining, and by
hydranliching, and dredging in Australia. Although
tin production in the United States is negligible, yet
this country consumed 45,551 tons of the metal in 1913.
equal to about 38^! of the world's output. This is used
mostly in the manufacture of so-called tin plate, which
consists of from 2 to _.•">'. till, the remainder being
sheet Btcel, and is used for making cans for jams, pre-
serves, fruit, salmon, anil other loo. Is. The average

pri f till in New York in 1 i'1 ;{ was 44.32c. per | id.

Tin-: I X. L. Syndicate

Nearly ten years ago E. T. Miles went to tin- Feder-
ated Malay States with a Commission to sell Australian

jam. fruit, timber, and even old steamships, when buy-
ers wen- offering. He had a little tin-mining ex-

perie ■ in Tasmania, and the Chinese who owned the

Kastern Shipping Co. an- said to have attracted his at-
tention to the tin deposits of Tongkah harbor, Con-
\ii d of the suitability of the locality for bucket-
dredging, and satisfied of the profitable character of

the ground, he returned to Tasmania with the idea

of forming a tin-dredging company among local capi-
talists. Messrs. Jones and I'ca •!;. two well known

Tasmanian jam manufacturers, heard the returned
traveler's talc, ami were convinced. The high price of
tin was the very bugbear of t heir existence as jam
manufacturers, and they willingly found support for
what came to he known as the I.X.I,. Syndicate, taking
the trade-name of the Jones jam factory products. The
jam people are said to have actually found all the

original capital. In Novemher, 1906, the Tongkah Har-
bor Tin Dredging Co.. X. L.", was registered in Tas-
mania, with headquarters at Hobart. Its location is

stdl jealously guarded (Kerr bj Ihe island capital iot<i

who thus dare. I t,, pi -, r what has become, or is rap

idlj l imi at industry. Th. Tongkah liarboi

i- now a ipany of £150,000 capital, in a ihan

fully paid A first dividend of is was paid in August
' 'I imountinR '•• >s in I'M I. four ■■-

1912, and quarterlj dividends of _'s ever sin.-.-. Six

dredges are at work, ami another under construction.

IOWI.R

HI /CM* ' J,^^.

i AMitnm*

UoJbo*

a xrnoofl T.o Or n»g -ng tM
., a ai'jtrut,fkM>>rir,nOrV09^g m.

ouLr or tiAK

SIAM

, - J • Twiph*l,HBrt»ur T,n Dp ^ .

THE .MALAY PENINSULA.

All were paid for out of profits. The latter amounted to
£78,304 in 1012. and to E80,024 in l!H:f. But another
way. the Company has returned its shareholders 28s.
per share to date, or £217,500; and the market value of
tin- shares is still today about 41s. (id. ca.-li.

Melbourne jam men, including A. W. Palfreyman".

could not afford to let their Hobart rivals scoop up all
the tin. With a certain amount of assistance from
Sydney capitalists, they formed' Tongkah Compound,
X.B.. registering the Company in Victoria in 1910. Tin-

MINING AND SCIENTIFIC PRESS

July 4, 1(114

capital authorized, and issued, is £§0,000, in £1 fully
paid 8b ares. The first dividend was paid in June, 1912,
and regular distributions have followed since. The
twenty-fourth was paid in .May. Shareholders have re-
ceived 49s. per share, nr £122,500 in profits; and the
Company's shares are still worth litis., or well over three
times their par value, upon the open market.

Small wonder that Sydney mining men declined to
leave the exploitation of tins wonderful profit-produc-
ing Malaya tin country to their Flobart and Melbourne
friends. And it was only in accord with the earlier
chapters that II. E. Pratten, a representative Sydney

.j.im man. should pioneer Sydney operations. Mr. Prat-
ten was one of the lucky original shareholders in the
Tongkah Compound, and. realizing the potentialities of
Malaya in the direction of bucket -dredging for tin. lie
stayed there a few weeks en route to England, in 1911.
becoming interested, he returned there again in 1912,
having, prior to his departure from Sydney, formed the
Austral Malay Tin. Limited, with a nominal capital of
£50,000, £20,000 of which has been called up, and the
£] shares in which are today quoted at 00s. The result
»f that English trip was the successful flotation of the
Kamunting Tin Dredging, Limited (London), with a
paid-up capital of £130.000: Kampong Kamunting Tin
Dredging, Limited (Sydney), capital paid up £130,000:
Narut Tin Dredging. Limited (Sydney), capital paid
up £50,000. Mr. Patten is president of the New Smith

Wales Chamber of Manufactures.

Dredging at Gnow

But meantime events had been moving on the Malay
Peninsula. Away up north in Siain. at a place called
Renong, the English administrator of the Mines De-
partment for "Western Siam had been approached by
English capitalists with a view to obtaining suitable
dredging ground. He took up an area at Gnow, l"
miles south from Renong, where a dredge with 7-cu. ft.
buckets started work for the Siamese Tin Dredging
Syndicate about 1900. That dredge has won up to 60
tons of black tin per month, and held the record for
production until last year, when the Tongkah Com-
pound started its big returns. The "Company is now
erecting two dredges with 15-ft. buckets at a cost of
£30,000 each.

Following the example of the Siamese Tin Dredging
Syndicate, another British company. Scotch people being
largely interested, sent out a representative, who ac-
quired other areas near Renong. They built their first
dredge there in 1910. and while paying their share-
holders 20% per annum they have also made sufficient
money to buy two large dredges, which are in com-
mission now.

The Malayan Tin was the next English (London
registered") bucket-dredging company of importance to
start operations. It acquired ground which the natives
had already worked in Kinta valley, near Ipoh, capital
of the Federated Malay States. One dredge started
in 10TJ. and a second was recently put into commission.
The nature of the eountrv in Kinta vallei is entirely

different from that of the more northerly areas. It is
limestone country, and it remains to be seen whether
bueket-dredging can be carried out successfully on the
uneven botto meommon to such formations. So far, the
first dredge operated by the Company is doing fairly
well.

DhKdging in Sum

Australian associations were not nearly finished with
the establishment of the Tongkah and Austral-Malay
mining groups. Mr. Miles retired from his Tongkah
associations, and struck out north in Siam during
1912. He had no difficulty in securing backers upon
that occasion, and, selecting concessions to the north
of Renong, established the Decbook Dredging, Ltd., and
Katoo Deebook companies. They each have a capital
of £100,000 in £1 shares. The Deebook has issued 52,-
000 fully paid shares, ami 38,000, now paid to 19s.,
holding 10,000 in reserve. The Katoo Deebook has is-
sued 43,000 fully paid and 42.000 paid to 13s. The
directors are worth noting as showing how the native
element is alive to the importance of the new mining
development in its midst. The directors are: E. T.
Miles. A. W. I'alfreyman. Khan Joo Chie (Penang), A.
Temple Miles, and Khan Joo Tok (Penang). Khan is
practically the native equivalent of mister or gentle-
man, and -Too indicates a member of the native ruling
family.

Among the last, but by no means least, of the Austral-
ian-controlled companies stands the Malaya Tin Cor-
poration. Like its Sydney forerunner, Austral-Malay
Tin. Ltd.. it was organized to promote the flotation of
sub-Concerns, rather than the working of mining areas.
Originally the Malay Peninsula Syndicate was formed
early in 1013 at the instigation of a visitor from Siam,
who offered to introduce suitably any representative
man who went back with him. with a view to obtaining
desirable concessions. Ultimately, T. II. Martyn. a prom-
inent member of the Sydney Stock Exchange, whose
active association with Australian dredging companies
is well and widely known, was induced to undertake
the expedition. He personally visited Siam and Burma,
and seemed valuable interests in both countries. Some
of these areas have been prospected with success.
while one in particular, situated in the Renong valley,
II) miles south of the Siamese Tin Syndicate leases, is
said to have been proved to carry over 2 lb. of tin per
cubic yard. According to official reports, about 150
acres of that lease, known as the Basin property, have
already been developed, and operations are being
continued on an extensive scale with boring plants over
the rest of the area. The Ratrnt organization is a
matter of the present time : but it is not a matter of flo-
tation, at least, in the ordinary sense of the word. Hold-
ers of shares in the Malay Tin Corporation are entitled
fo a preferential allotment of shares in the new Com-
pany, five for one, pro rain to their present holding.
The £5 shares of the Corporation, it has a nominal capi-
tal of £42,000 in S400 fully paid shares of £."i each, were
quoted on April 28 at £12.

.Mil* I 1!'U

MIMV. \M) » II Mil It I'KI »

other Australian In Ualaj i

worth) of more of Ira attention, include n Bydnrv
venture known ,iv the Kulim-Malayan Tin Bynd
□0,000 in 1000 ihara of C10 each, and » Melbourne
company known »- the Trong Tin Mining Co The
former is situated in the Malaj -int.- of Kodah, while
tlit- latter boldi property about 25 ntflea aontfa of the
I. iii-iit Dear the town of Bruai The Trong baa ■
capital of £80,000 in £1 share*, of which 30,000 were
issued fully paid to the vendors, and 90,000 to sub-
scribers »' "•-. paid, leaving 20,000 in reserve.

Hut. as ; I'rlfijrii/ih says, all is ool gold thai
glitters. Mans Australian syndicates have sent repre
tentative* to Malaya, ami in not a few instances the
results so far have ool been satisfactory for sharehold-
ers. There are, for instance, sneh Victoria ncerna as

Rnngei Raja, Salak South. North Tambnn, and the
Hindu Chong mines. And there are others, no1 marly
all Victorian. The 'wild-cat' is always present when

mining bh sses have been achieved. It is for prudenl

investors to weigh every statement made, and, above
all. relj rather upon 1 1 1 « - reputation of the promoters
than the statements made by mining nonentities.

New Dri

A contract for the construction and erection of two
large bucket dredges, at a total cost of £40.11110. for
equipping tin- property of the Kampong Kauranting
Tin Dredging Co., mentioned above, has been placi d in
Melbourne. The specifications and design are the work
of J. S. Henry, and the dredges contracted for will, it

is officially Btated, l asily the largest ever built in

Australia. The material ami workmanship will be as
far as possible Australian. The latest improvements

found i essary as a result of tin-dredging experience

in Malaya, including tin- most recent type of revolving
sereen, will be fitted in these dredges, barge tin-saving
tables are another feature, the pontoon being specially
large, namely, 130 by 44 ft. by 8'i ft. deep to carry
them. The boats will be fitted with close-connected
6-cu. ft. buckets, which will have a theoretical capacity
of 35.000 yd. per week for each dredge, and effective
capacity of 20.000 to 25,000 yd. of tin-bearing material
per week. The plant specified is designed to dredge
4."> ft. below water-level. The main engine is of 120
hp., and the pump installed for sluicing has a delivery
of fiOOO gal. of water per minute. The cost of the two
dredges erected and in good working order at the
property, together with the spares, tools, tin dressing

sheds, and buildings, will exceed £40.000. The total

weight of the dredges, with machinery, will be over 625
tons, which is considerably over 100 tons heavier than
the largest dredge yet sent from Australia to the Orient.
The contract time for delivery for the first dredge is
eight months, and for the second eleven months from
the date of signing the contract.

All tin recovered in the Malay States is smelted at
Penang and Singapore. An export duty of 12.5^ is
levied on the tin leaving the country, and in 1012 the

mho Hi ui Itiah ."Hi

amounting to : "" |H| o

Prom the above notes it must not he inferred th«'
mil paying attention to their own tin
properties, as is shown bj the work in iluicin
Kiiv.iv ii iii I lode mining at the Anchor, Pioneer, Ml
KiseiiotT. ami others in Tasmania, lode mining in
Queensland, dredging in New South Wales, and lodi
mining in Weatern Australia.

Mining in (the Argentine

Mining has made hut little progress in Argentina

Whil ipper. lead, silver, gold, wolfn re-, and bora>

salts, as well as small quantities of other minerals, are
scattered over the Provinces of Mendoza, Sau Juan, La
Ifioja, i atamarca, Salta, Jujuy, Tucui Cordoba, and

'San Luis in the northern consular district, great dis

lance from the coast and difficulty and expense of trans

porting supplies and ore make mining in mosl in

stances unprofitable. A irding to official informal ion

obtained from the Bureau of Mines at Buenos Aires,
there are thn >pper, one borax, one wolfram, one

silver, one onyx, one lime and cement, and a petroleum

company now operating in this district. Two of the cop
per mining companies, the Famatina Development Cor

porn t ion, Ltd., provint f La Rioja, and the Corapaniii

Miners Nueva Concordia, Territory of Los Andes, failed

recently. Fi i reliable private information it ap]

thai the only mining venture conducted on any eon-
si, lend. I, • scale at present in this district is the Hansii.
Sociedad de Minas, which works valuable wolfram de-
posits in the Province of San Luis. According to
official Statistics supplied by the Bureau of Mines, tile

following quantities, in metric tons, of ore were ex-
port! d in 1913 : onyx. 281 ; gypsum. 174 ; mica, >> ; borate

of lime, 058: wolfram. 5:{6 : copper. :!10: and lead. T

tons. These figures may be taken as indicative of pro-
duction, as there is no ore reduction in the country.
Practically all of the ore exported is mined in Hie north-
ern consular district. The Sierra de Cordoba possesses
rich stone deposits, the more valuable because of the

small quantity in many parts of tl ountry in building

materials. According to official statistics, 11 different
companies are now exploiting quarries, principally
granite and limestone, in the province of Cordoba, in
addition to other smaller concerns. — Daily Consular
Hi port.

Indian Coal ©uaftpnaft

The chief inspector of mines in India reports the
output of coal in British India during 1913 as 15.486.-
318 tons from the following districts: Bengal. 4,649,852;
Bebar and Orissa, 10,226,389; Punjab. 51,040; Assam.
270,364; Baluchistan, 52,932; Central Provinces, 235,-
653 : and Northwest Provinces, 90 tons. In addition.
600,000 tons was imported. Exports were 3,000,000
tons, leaving about 13.000.000 tons consumed in India,
of which the railways took 4.500,000 tons.'

MINING AND SCIENTIFIC PRESS

Julv +. 1914

A MkMgaim Stoplimg Mefclnodl

In the accompanying diagram, Pig. 1, is shown a
peculiar condition which occurred in a Michigan mini'.
The deposit was being worked from the lower levels
up, as it was discovered by a raise from lower work-
ings, the orebody was irregnlay, but for the must part
ua^ 12 It. wide and hail a dip of 4."i . With so shallow

a dip, the stuping could be easily accomplished from
one level to that above, by merely standing on the foot-
wall, as is customary in mines of low dip. The slices
for atoping were mined in several different ways, ac-
cording to the nature ot' the ore. The raises wen'
driven straight up the dip of the deposit, as shown in
the lower portion of Pig. 1. But higher up in the ore-

ont by raises is convenient for the loading of tram
cars on the level below, as ore-chutes ran be con«
structed at the bottom of the raises. In the method
shown in Fig. _. wheelbarrows are used in the stopes
for getting ore to the raises, although some of the ore
falls directly into the raises, when blasted. Sub-levels
and raises are popular in many of the mining methods
in the Michigan iron mines for soft and dium ore.

With a production in 1913 exceeding for the first
tiine in its hist,,i> a total of 70,000,000 tons. West

Virginia became firmly established as the sit I in

rank among the coal-producing states. A< rding to

Pic. 1.

bod} the dip became nearly vertical, so that a miner
COllld not stand on the loot-wall to set up his drill.
It would have been possible to let a large quantity of
broken ore accumulate in order to stand on while work-
ing, as is done in hack stoping, dry-wall methods, etc.,
but the manager did not want to tii' up money by keep-
ing, as is dour iu back stoping. dry-wall methods, etc.,

to make it possible to stand on the foot-wall, the raises

weir no longer put in along the dip. but diagonally,
as shown in the upper part of Kg. 1. It is evident that
an} angle of raise desired can be obtained by driving
foot-wall raisrs across the dip of tin- deposit instead
of at right angles with the drift. Secondary vertical
raises were also used, when desired for ore-chutes, but
the men stayed in tin- inclined raises. This brings
nut tli,- point that raisi-s. in stoping methods, are used
for two purposes, for men and timber and as ore-chutes.
Thus in tlir illustration the men stay in tin- diagonal
raises and hlast ore down either tin- diagonal or the
right-angled raisrs. In gome mining methods tin- raises
for men and timber are kept in good condition and arc
cribbed and no ore is dumped through them, except
when driving them and in cross-cutting over to an ore-
chute raise at their completion.

In Pig. J a system of raises is shown which illustrates
soiiu- of tin- variations used in an iron mine at Wirau-
nee, Michigan. With one-man stoper drills in soft or
medium ore, raising is not expensive, and getting ore

Edward W. Parker, of tin- I'. s. Geological Survey,
the production in 1913 was 71,308,982 tons, showing
a gain of 4,522,295 short tons, or nearly l'/ c over the
output of 1912. up to that time the record tonnage.
The increased production was accompanied by a con-
siderably larger gain in value, which showed an in-
crease over 1912 of $9,079,931, or 14.46%. The value
id' the output in 1913 was $71,872,165. The average
value for the first time iu ten years exceeded .+1 per
ton. The production increased in 1913 in spite of the
facts that the labor troubles in the Paint Creek and
Cabin Creek districts of the Kanawha field, which
began in the early part of 1912. were not settled until
well into the spring of 191:-!. and that the unprece-
dented fi Is in the Ohio valley in the spring reduced

shipments to the west for a considerable time. A

few of the mines that were closed by the strike were
not reopened during 1913, and the total production
from the two districts affected was much below the

normal output. The increased production was well
distributed over the state, there being but three coun-
ties out of thirty where decreases were shown.

According to the Bureau of Mines, the number of
fatal accidents in the coal mines of West Virginia
showed a decrease of 22. from 359 in 1912 to 337 in
1913. although there was an increase of nearly 10%
in the number of men employed. Labor troubles
caused the h ss of 377,405 working days.

t I'M I

MIMV. WD m II \ I || U |-K| ss

I (*. siimm. * s.iiviuii Puau art led to in,- thlt department u>< the Htctuiton of technical

•ad •<!'• "inr; i., Bunmy (in./ MetaUnrpy. ;/ir Kdltor welcomet the CTpreuton .if 1 1... « OMrrary

f.j Au i.h n. krlirvlug tkol careful nitlcim i< mo"- i.i/miM,- ik« omimI <mui'i ni. FnterMoN .if any oonlrttn-

termtned >■</ lit probaklt htferetl to c • ma/,

Simplification of Gold Or; Treatment

The Editor:

Probably the moat refractory 'versus' in eon-
trovenrial metallurgy is 'crushing in water ami amal-
gamating v. crushing in solution without amalgamation.'
In id. Hay 10 \ \V. Allen cites data to prove

that crushing in solution without amalgamation in-
volves excessive precipitation with consequenl Fouling
of solution. Il<- instances the Dome and Hollinger mills,
and probablv nu better opportunity baa ever been af-
forded for comparison. As Mr. Allen points out. these
mills are working aide l>y side on ore differing essen-
tially only in grade, the Dome crushing in water and
amalgamating, while the Bollinger is crushing in solu-
tion without amalgamation. Both have been dropping
raps .hi sbout the same tonnage, and both started
• In t-iiii» the Bummer of 1912. Mr. Allen's comparative
table refers to approximate data of mill operations < » I » -
tained in Augual 1912 while both mills were in the
tuning i ■ | > process, and hence should nol be considered.
The i. -suits during the firs) pari of 1913 arc also affected
by the fad that the companies were fighting a serious
labor disturbance which entailed erratic work in the
mills. Hence the only figures which are of any possible
value for comparisons are those from the working of
the mills during the latter part of 1913 and during the
present year. Accurate figures from Hollinger opera-
tions for 1913 and 1914 to date are given in the fol-
lowing table, and also those approximating closely the
Dome present practice, as well as Mr. .Mini's tabula-
tion :

HolliiiKer Mill:
( Exact figures from
records. )
Treatment. 1913. ltiUtodate.

Solution precipitated per ton of ore... 3.16 2.67

Zinc consumption per ton of ore 0.66 0.59

(yanidc consumption per ion of ore... 0.46 0.46

Cyanide added Tube-mill reed.

Total recovery 96.10 96.00

It will be noticed that Mr. Allen's figures are suffi-
ciently incorrect to prove his point, but that by apply-
ing his own line of reasoning to the actual figures, the
exact reverse is proved, namely, that in tliis instance
crushing in solution without amalgamation is superior
in crushing in water and amalgamating.

A point of which Mr. Allen seems to lose sight is that
tons of solution precipitated per ton of Ore ( precipita-
tion ratio' i is a factor of the grade of ore. f quote

i'i- Mr. Allen (referring to the Bapcranxa) : "and the

amount of solution pi ipitated is only ■ '. ions per ton

of ore a- .'gainst iui r three limes that amount in

cas.s where ordinary Htamp-uiilliug is practised." Now
at the Holliuger 2.1 to l is being precipitated, against
1 7 to I at the Dome, while the grade of tin- Hollinger

ore milled is about tin times that of the Dome. As

suming that we were amalgamating at the Hollinger and
that we could make the same extraction by amalgams
tion that the Dome makes, our cyanide 'heads' would

still he three times those of the Dome, and a precipita-
tion ratio of .", to l i :i tim.-s 1.7: would be justifiable.
In other words, we would be precipitating about twice

what we do now. Again assuming that the D ore

was crushed in solution and not amalgamated, the

cyanide 'heads' would lie one-third of ours, so that the

precipitation ratio should be one-third that of the I l<»l-
linger or 0.9 to I. Thus the Dome is precipitating

twice what would be n ssary were they crushing in

solution ami not amalgamating.

At first sight it would look as if Mr. Allen's point is
well taken, and that if the gold going into solution can

In- reduced, the precipitation ratio can he reduced pro.
poi-i innately, hut actually the reverse is the case. On

; ount of crushing in water, an excess of solution is

made and a Corresponding amount must he precipitated
and thrown away. This precipitation of 'waste' solu-
tion added to the high-grade solution precipitation,
makes the precipitation ratio greater than it would he

Were cyanide solution instead of water used in Crush-
ing — at the Dome twice as great. Discarding any solu-
tion from the mill other than with the tailing is poor

Dome Mill:

(Approximate

present

practice, i

1.70

0.34

ii. T-".

Before agitation.

95.00

, As Cited by .Mr. Allen: ,

Hollinger. Mom.-.

4.0 2.00

0.8 0.25

0.80

Before precipitation. Before agitation.

93.0 95.00

practice if it can he avoided. One never knows whether
a careless operator on night shift is not habitually
opening the wrong valve and allowing good solution to
gel away; especially with zinc-dust a sudden loss of
precipitation may run up the grade of the 'waste' solu-
tion ; the cyanide loss is greatly increased and it may be
necessary at any time to have to charge up a herd of
sheep or a dozen cows to operation. The only point
which Mr. Allen can make in favor of 'waste' solution

MINING AND SCIENTIFIC PRESS

.lulv 4. 1!>14

is that fooling is reduced, and I must say that to pre-
cipitate and throw away solution is a crude method of
avoiding this difficulty. There is always a less of solu-
tion in the tailing, so that new solution is being made all
the time sufficient to offset fouling with careful opera-
tion on normally clean ore. I say most emphatically that
tin- slogan of a good mill superintendent should be 'Not
a pound of water into the mill without getting a wash
with it. and not a pound of solution out of the mill
except with the tailing.' If a recovery of about > s|1 '.

is possible by crashing and amalgamating in water, as
at the Homeatake, I admit that this principle does not
apply; hut with only 60% as at the Dome, it does apply,
ami I should say that with about *'>.•/,. which Mr.
Allen's figures show to be the Hand recovery by amal-
gamation, 1 would even risk a charge of heresy in hint-
ing that it is mighty close.

Noel < Vxni.voium.
Timmins, Ontario. June 14.

That it is extremely difficult to draw parallels be-
tween the practice at any two mills, it goes without
saying. The innumerable factors which enter into the
making of an economic ore treatment differ so widely
at different properties, even in the same locality, that
to state thai the practice at one mill should be recog-
nized as standard ami another as deficient is mislead-
ing, even though results would Beem to warrant such

a statement. The discussion on 'Simplification of Ore
Treatment' has been a most interesting one, in that
the snhjeet is one toward which all metallurgists are
making efforts, but we believe that only a very gen-
eral simplification is possible of attainment in metal-
lurgical practice. Those details and refinements which
go to make up individual efficiency will contin
depend entirely upon local conditions which cannot be
changed. The questions, however, which have been
raised in this discussion have been timely, ami we trust
may lead t<> a better understanding of the subject. —
Editor.]

Platinwuunni Assay

The Editor:

sir -Before rational steps .-an be taken to conserve

our- platinum resources and to recover that metal from
the usual run of commercial ores, it is essential to
develop simple and accurate methods for the deter-
mination of the metal that may be successfully applied
by general commercial assayers with the limited equip-
ment usually at hand. I would, therefore, direct at-
tention to certain difficulties in the three methods
published by you in tabular form on page S14 of tie-
May lb issue.

The first method requires the use of a reagent.
IPO., which is not ordinarily carried by assay offices.
I may also add that perhaps the limits of accuracy of
this separation when considerable relative quantities
of An are to be separated from small amounts of Pt
have not yet been sufficiently worked out. In the sec-
ond method there are two points where great care

and attention to details are required to secure any-
thing like a clean separation. To dissolve the Ay in
HNO, and to leave the Pt undissolved requires ex-
tremely close work, which cannot ordinarily be given
in a commercial assay office, while it is practically
impossible so carefully to adjust the strength of acid
and temperature as completely to dissolve the An in
aqua-regia pnd leave the Pt unattacked. As to the
third method, some tests made in the New York assay
office have shown that Cd does not always prevent the
solution of some of the Pt in assay buttons and this
separation cannot be relied on.

Pbbderic P. Dbwey.
Washington, D. C, May 26.

The Editor:

Sir — K. A. I-'. Penrose's valuable paper on 'Certain
Phases of Superficial Diffusion of Ore Deposits' in the
January number of the current volume of Econ
Geology, recalls a matter in which I have been inter-
ested lor some years. The secondary enrichment of
orebodies by the downward migration of salts of the

metals formed in the ;nvsm is only one phase of a lo-u-
eial process. Prom the miner's point of view it is per-
haps the must important phase; hut. as .Mr. Penrose

points out. the emphasis which has been placed up.ui
i' tin- practical reasons should imt blind us to the more
genera] aspect of the process. The diffusion of ..re.
I.'.ilies throughout a larger volume of rock than that in
which they were formerly contained is doubtless of

nmiin occurrence. In 1010 I called attention to. the

diffusion of ores at a meeting of the San Francis.'..

section of the Mining ami .Metallurgical Society of

America.' The summary report of my remarks is as
follows :

"1. The oi'e at Ely is a secondary deposition due to
downward leaching from pre-existing orebodies at
higher levels, now removed by erosion. These vanished

orebodies may have been more ntrated as regards

copper content than the present ..res. which may In-
due to a process of diffusion ratlu-r than concentration.

"2. The mode of occurrence of the massive ore-
bodies in the rhyolite of Shasta county indicates how
such a derivation of the Ely ores could come about.

"3. These Shasta ores are chiefly massive bodi
pyrite with admixtures of chalcopyrite. If thes
.rosion and favorable relation to tin- groundwater,
should have come into the zone of active oxidation, the
copper might well have been carried to lower levels and
diffused as chalcocite and pyrite through tin- rhyolite,
and the resulting Rossini might subsequently have been
removed, leaving a disseminated porphyry ore of the
Ely type and no trace of the massive ore of the Shasta
type."

At the Toronto meeting of the International Geo-
logical Congress, 1913. I again called attention, in the
*M. & M. S. A.. Hull. No. :•:'.. May 1910, pp. 263, 264,

Jul* 4 I'M

MIMV. \\I) m II M II I. F'Rl»

ding » Uli rpit-ationa in I

tin- in.,! ..i I.....-II ,n appropriate nmue 1 1 • • -

■Ouch both leeoudnr) enrichment
mm, I diffusion in but particular phase*. Another phaae
el ili, proeaaa it thai which ia concerned with the pri
concentration of orea from the minute!) diaaemi
h«i«hI |>articlea in both sedimentary and igneous rocka,

irdai with the view held, for example, bj many

geologiata as >•■ tl rigiu of the i lead deposit* of

the HJaaavippi Valley, I am aatiafied thai man] of
ili- ahallow, rich ore deposits of Nevada are dne t" a
|ir,»-,ss of concentration from decomposing igneous
r.M-ks The rooks from which these orea are abstracted
may, in ■ ■.•■n-.,-. be regarded ns the gossan of an ex
tremety lean ore from which the salts of the metals are
earned down by permeating waters to be deposited in
favorable situations, determined bj fractures, gouges,
etc. The proceaa is identical with that usually de-

aeribed aa •>< ndary enrichment and yel this term can

not be applied i,> it, since it results in primary ooncen

inition. This phase of the pr as realises some of the

ideas involved in tl Id theories of ore deposition

frimi descending waters and by lateral secretion, but it
differs from both. The important matter, as it seems to
me, is that we should regard secondary enrichment,

diffusion, and certain primary coi Titrations of ore, aa

phases of ;i general pr ss the importance of which has

ii, if yet been fully r gnized in >■ >mic geology.

Andrew < '. I. iwson.
Berkeley. California, June 23

jit me

The Editor:

sir — Regarding Hie question of the 'Revision of the
Mining Law,' I think ii would be well for the mining
world tn firs! analyze our present mining l;nvs thor-
oughly and find onl why they are inefficient. The pres-
enl claim of 600 bj 1500 ft is just us good as a claim
would be if it was 660 by 1320. I think a claim fol-
lowing the dip of the vein is better than one with per-
pendicular Kin's in so far as it has a tendency to kt-<-] >

n miner from locating nnni ssary surface land with

n itcrops. Mm in revising a law that would make

vertical lines, let it apply only to Buch Lands as are
known to have mineral or a possibility of mineral with
i utcrop and then lei the claim I"' 1500 by 1500.

[f one looks into the present mining laws, there is
nothing much to condemn, excepting that there should
be some regulation regarding assessment work,
and the mineral lands should lie classified; that is, gold
and silver. A claim under the present law should
cover all that a prospector could ask for. If he can-
not do an honest $100 worth of work per year upon
such claims, he should forfeit them.

On copper and baser metals, when a prospector holds
from 6 to 12 or more claims as a group. I think .$25
per year of honest work performed should he sufficient.
The mining law is plain and concise, but it has never

upheld i" \ . , muni mi..

I >• must have mineral in plan i>. mual lie

his claim i.. permanent mi uta ami ohjerta, ha

Make Ins property \,,» what n ran *•■■■

Mill tile law is ii,, I ,aiii,, I i. ill, ami why id \\ •

tin- (iovernment been -, alow in asserting 1 1 s right to

the miueral upon nil gran) lands" Why has it allowed

limber claimi to !„• located ining claims ami nun

■•nil Ian. is. thus giving the miners' territory away 'I 'I •

reservation of the Qoveri nt'a mineral right upon

grant lands has never held. I know that the old canal

(riant in the Lake Superior country had about the aa

recognition that tin- railroad grants have had An in-
dividual buying land always found that exception in

the deed, bul mining -p,, rations s, how obtained

the land and miueral. Is it this thai has caused the
Government to be so slow abonl asserting its righl to

the mineral on rail mail grants, ft i the fact thai there

was hundreds of millions at stake in the Lake Superior
en uni ry I

line can forget the old canal grant, bin it is time

for the mining public to gel together and not only
i' ver the mineral upon all subsequent land entries,

hut to demand that which is theirs, that is. the min-
eral on grant lands and timber lands. Then frame

laws that will not have a tendency t,> land monopoly.
The law says hones! discoveries must !»■ made, but von

cannot enforce these laws to the letter when the Gov-
ernment has been a half century trying to find out
if they have the mineral on grant lands, which they

explicitly specified they did have: yet officials seem

afraid to reclaim that which belongs to the public.

I »,, not reserve anything more from the poor home-
steader unless you take that which belongs to us from
the grant lands. The farmer ami miner have both
been imposed upon. They are willing to meet on an
equal footing. There has never been any trouble be-
tween them, and you will find if the miners will get
together and demand the mineral belonging to them
the old homesteader ami farmer will he right at our
hacks making as much noise as any old prospector,
miner, engineer, or mining professor.

I oppose an annual tax of $10 per claim : after a
man patents he might be able to pay tax. hut while
he holds his claim under location. I believe in annual
work — $1(1(1 per claim on precious metals and $25 per
claim upon semi-precious metals. Let this he done upon
the property. When patent is granted, it should he

at $2.5(1 per acre and carry annual work of +25 per
claim on precious-metal claims anil $12.50 per claim
on 8emi-preci0US claims: or privilege to pay the amount
to state or I Iovernment. On failure to pay or work
for a period of three years, let the land go back to the
state, to work, sell, or open for relocation. Each state
should be divided into mining districts and each dis-
trict have a recorder of all transactions in mining.
Only claims on record should he valid.

(', J. Pi:y.
Iluttnn. California, January If).

MINING AND SCIENTIFIC PRESS

July 4. 1!U4

COMCEMTEATES

Most of these are in reply to question* received by mail. Our readers are Invited /" ask questions and give
ation ilealintj Witt the practice >>f mining, millinp, and smelting.

Carbide lamps are rapidly displacing other types in
Lake Superior iron mines.

The .mass of the sun is 332,800 times the mass of the

earth, the resj tive diameters Wing 865,000 and Tltls

miles. A body weighing 100 lb. on the earth's surface,
would he about 3000 lb. on the sun.

An alloy composed of from 85 to 87% of aluminum.
9 to 11', of sane, 2 to 4',, of lead, and 1 to 3% of a

Strengthening element has been patented by Charles P.

Van Gundy, of Catonsville, Maryland.

TO FEED an average of SOU natives at the Lonely Reef

mine in Rhodesia, in 1913. with bread, beans, mealies
(corn), monkey nuts, rice, green vegetables, rations.
salt. meat, sugar, eoeoa. kaffir corn, milk, and maizena.
cost a total of $36,500, equal to about $46 per head per
year.

Electric power generated by mine power-plants of
the St. John del Key Mining Co., Brazil, during the past
financial year, averaged 3314 hp. per day. at a cost of
3.2c. per -.'4 hours. The total output was 26,429,006 hp.
hours. The mine used 60'<v of the power, and the mills
and machine shops 36.81 per cent.

A process for the separation of bismuth and copper,
which consists in reducing the bismuth copper product,
consisting chiefly of bismuth and copper, to a fine state,
intimately mixing therewith a suitable compound con-
taining combined sulphur, smelting said mixture to pro-
vide crude bismuth and copper matte, and separating
the copper matte from the said crude bismuth, has been
patented by William Thum, of Hammond, Indiana.

Tubing tor boilers consists of three classes, lap-weld
charcoal iron, lap-weld steel, and seamless steel. For
tubes to withstand corrosive action, lap-weld steel
tubes are satisfactory, they being manufactured by a
process known as roll-knobbling whereby the steel
receives ■■> kneading action, making it uniformly dense.
in being worked down from the bloom to the plate.
By this process it is more resistant to corrosion. The
well known 'National ' tube is made this way.

Dust-fall in the neighborhood of cement plants has
become a matter of considerable importance of late, as
a result of litigation between certain cement companies
and owners of land in the vicinity. According to J.
1*. Mitchell, of Stanford University, tests made at dis-
tances of from 1.2 to 2.8 miles from a plant showed the

amount of cement dust falling varied from 0.4 to 10.4
lb. per acre per day. ami field dust from 0.3 to 0.9 lb.
per day.

'PlCKlNii-ri' bottoms' is a phrase used in mining to
describe the operation of removal of the last slice of ore
in a stope, that is, the ore lying immediately under a
level and forming the back of the overhand stope. The

////, ./ft///-//////'//',, ,, /fif*, ,///////////'//////////////,

. CAufe ■
\/f •/ntrrift.
' y O'tam. \

-77777777777777Tr7T

■^.Bottom} /O'** I

<S\- '- ' ■ .-. -

>»///fj/»W///S»/ y r r /f

one y

Stope Bo/tom
SKCTIOH OS MINK SHOWING METHOD OF PICKJAG-UP BOTTOMS.

figure herewith illustrates a method of mining this ore
adopted at Broken Hill and described by Andrew Fair-
weather. Since the slice supports the bottoms of the
level above, its removal necessitates picking them up;
hi' • the phrase and its use in this connection.

Many mine officials, foremen, or bosses who have
spent years at a single mine do not see readily the
necessity for mine signboards; because they are entirely
familiar with the mine workings, it does not occur to
them that the average miner cannot in a short time ac-
quire the same familiarity with conditions. In the
United States today, both metal and coal miners are
largely of a roving disposition. Many of them are
foreigners who are more or less ignorant of English.
As a class, they require guidance in the matter of pro-
tecting themselves from accidental injury. Mine sign-
boards are in use in many mining districts of the United
States, according to Edwin Higgins and Edward Steidle
of the Bureau of Mines. Although in no part of the
country has the practice become general, there are
isolated mines that have worked out an elaborate sys-
tem of signboards. There has been no concerted action
looking to the adoption of certain universal symbols or
signs, although there are manufacturers of signs, and
some local mining organizations now working toward
this end.

Jab i i'H4

MI\IV. \\l> SCIEN1 II K l'KI SS

LSADVH I I '. i VLORADO

. .|ll..\ ... ||l> Ml MM. IMUMKI IMlt'uiKi

ikim rl\i. I.. lllPOSTAXl l». -\i,M Mi ClIAUPIOK,

*.. \si. Vuumi. Mims Zl.xc Smiiiii: Tin Down-

UIoIdi development in the Leadville district this summer
marked Increase over that ol the past several rears,
i hr.-. new (actors nave helped to this end, which combine
to form tin- beginning ol another of tin. great revivals thai
bavi occurred perlodlcalrj in the mineral activities ol tins
urea, namely: > i • two outlying .li^-i i i<t >. which tor a Dum-
ber of yean: have been considered as barren ground, are
now producing n large tonnage ol high-grade gold and sllvei
plant for tin' manufacture of zinc oxide from the
lowei t-rade carbonate ore is being constructed by the West
•td Zlni Mating i Reduction Co.; and (3) a leasing consoli-
dation fur unwaterlng tin- flooded area known as the down-
town mining district' Is rapidly nearlng completion, and a
similar enterprise is being promoted (Or pumping the water
from the old famous Fryer Hill territory.

In the Lackawanna area and the upper Half-Moon gulch,
several new mines have been opened within tin- past year.
The Mt. Champion property is now one of the largest gold-
producing mines In (he Leadville district. It Is situated about
15 miles from the nearest railroad, in a locality that has
long been looked upon as most unpromising. Obstructions of
•■\-T> kind confronted tin- nun who knew they had a mine,
and were determined to develop it. A good road, eight miles
long, had to be built, and machinery had to he transported
to the ground, and buildings erected in a district that is
noted for its severe winters and short summers. After the
mine had been opened, and shipping had been under way for
a few weeks, it was found that the character of the ore de-
manded mill treatment in order to obtain the best results.
A 50-tOH mill was then erected at the foot of the range, about
Bve miles from the mine, and a tram constructed to carry
the ore. It seemed impossible that a mine could he made
a success under such conditions, but it is now working steadily
with a force of 75 men, and producing regularly 50 tons of
ore per day which averages between 30 and 50 oz. gold. The
mine is now developed by three adits, all on the vein at
various depths, and the manager stated recently that there
was $100,000 worth of ore blocked out. Other properties are
showing equally favorable results, and it will he only a ques-
tion of time until there will he several large producers in
this district.

The Sugar Loaf territory' is 'he other 'no good' ground which
has come prominently to the front within the .last several
months. Three important tunnel companies are now operat-
ing in this district, and each of them is shipping a good
tonnage of silver ore. The Dinero is the most productive at
present. 100 tons per day being shipped, all of which con-
tains rich silver-lead content. The Slwatch tunnel has opened
a large body of lower grade material which is being produced
as fast as possible. The Virginlus Consolidated properties
recently developed the most important orebody that has been
found for some time. A large vein of silver-bearing ore which
assays up to thousands of ounces per ton was opened last
month, and a steady tonnage is now being shipped. Other
smaller properties are being developed, and It appears that
a number of them will soon be in the producing list. The

■I ol mining men all through tht slat* Is cm i on

this and ih, Lackawanna country, ami men who know the

district sa> that tin- i. rles in these localities will

I revival of mining In Leadville that will rival the

palmy days ol tin- sari] eighties,
iii. construction of tin- zinc oxide plant i» probably attract

nig in. ire widespread attention than any other work In the
district. This smelter, when finished, will handle carbonate

i «lii, I itains as low as 14','c zinc. It will give a

much more satisfactory market for the ore, and allow a more
favorable contract to miners of the camp. The plant will
]'■ erected in units of 50ton capacity each, and the first Is
about completed. As soon ns It is in good running order,
and the management Ib satisfied as to Its efficiency, the other
units will in- erected as rapidly as possible, until a complete
plant of 200-ton capacity is reached. The last two units will
I., equipped with roasting furnaces to deal with sulphide ores,
and there is little doubt that If the industry proves as profit-
able as it is expected i<> lie, other concerns will enter the
Held with similar schemes. All this tends to throw a bright
llghl on the zinc mining of the future. I.eadville is for-
tunate in its deposits of zinc ores, both in the carbonate and
the sulphide zones. At present, several of the properties that
have been idle for a score of years are being put into shape
to resume operations in their zinc Btopes, and as the demand
grows the mining industry will keep pace with it.

The third and perhaps the greatest factor in the advance
of mining in the Leadville district is the proposal to dewater
the Vnlnes of the down-town district. This territory covers
an area one mile square, within which boundaries some of
tb. largest mines of the district have been found. All of the
properties have been worked out down to water-level, but
heretofore no effort has been made to get at the orebodles
that are known to exist below this point. Jesse F. McDonald,
ex-governor, together with a number of Eastern capitalists,
has secured a lease on all the ground within the basin, and
is now preparing to start the actual work of unwatering and
developing the formations at a depth of 1000 ft. Machinery
is now being manufactured for the work, and all of the oper-
ations will be done along the most modern lines. This enter-
prise will do more to advance the general prosperity of the
district than any other now under way. It will cause the
reopening of numerous idle properties, and will give employ-
ment to probably 1000 men. The success of this undertaking
will induce the final agreement for the unwatering of the Fryer
Hill territory, if it is not done before, and the two together
will make a new Leadville.

MANILA, PHILIPPINE ISLANDS

dredges at wobk, ano others pttobabt.k. colorado, keystone.

and Syndicate Mills. — Iron Mining. — Proposed Tax on
Mine Output. — Bureau or Science Work.

Regardless of whatever else may be said regarding business
in the Philippine Islands, the mining industry continues its
steady development. With the starting of the new Umiral
dredge, and of the new dredge on the Malaguit river, Para-
cale, there are now six dredges at work in the territory.
Some attention has been attracted lately to the Bued river,
where that river debouches into the central plain. ■ Here
prospecting has been conducted with encouraging results.
One California mining man recently said that if the prop-

MINING AND SCIENTIFIC PRESS

July 4, 1!M4

ertj were In the Sacramento valley there would be uo diffi-
culty iu securing capital to put several dredges on it at once.

An Australian. Mr. Murray, who has a patent device for
saving black sands which collect on dredges, Is visiting these
districts. In several places black sands have been found to
carry good gold content. August Heise. well known iu Phil-
ippine mining fields, has returned from the United States
with engineers to examine his placer properties on the Hi-
bong branch of the Agusan river, northeastern Mindanao.
Mr Humphries, the engineer in charge, brought a steam
drill with him.

Most encouraging reports come from the new Syndicate
mill on the island of Masbate, as well as from the Keystone
and the Colorado. The output of the Colorado is said to

Sold

Cca/

SOUTHERN run in THE PHILIPPINES.

be a large increase over previous years. The Syndicate mill
is now being enlarged.

Gold mining is still the most promising phase of the in-
dustry. bu( in the Angat iron-ore district conditions are
favorable for a much greater production of iron and the
establishment of that industry on a sound basis. On Calani-
bayanga island, at the mouth of Mambulao bay, Mr. Cavender
is erecting a cupola to smelt the iron deposits found on that
island. This deposit is one of the most favorably situated
of all those found in the Philippines.

Mining men have been deeply concerned lately with the
attempt of the collector of internal revenue to place a
tax of 3% on the gross output of the mines. Many conver-
sant with the condition of the industry have felt that this
is unjust, and would seriously cripple the Industry at this
time. The proposed tax was rejected by the commission.
Failing in this, the collector has tried to class gold bullion
as merchandise and thus bring it under a tax of 1.5%. A
meeting of protest was recently held, and plans are under
way to form a permanent mining association in the Philip-
pines. It is fortunate in one way that this incident hap-

pened, as it has revealed the necessity for cooperation on
the part of the mining men.

The Division of Mines, Bureau of Science, has recently
lost the services of F. T. Eddingneld, mining engineer, who,
after five years' service, now returns to the United States.
The mining industry has profited considerably by his service
in the islands, and appreciates the work he has done. Paul
R. Fanning, metallurgist for three years in the division, is
another good man whom the Bureau lost when the economy
wave of the Democratic administration struck the islands.
The two most important pieces of field work carried on by
members of the Division of Mines lately are one by Warren
D. Smith, chief of the division, who spent two months in
north central Luzon making reconnaissances in hitherto geo-
logically unexplored territory: and one by Wallace H. Pratt,
who spent a long lime on the Caraniuan peninsula making
stllmar reconnaissances. During Mr. Smith's work, consid-
erable mineralization was noticed in the region just east of
the Cordillera Central. Whether these lodes will prove to
be profitable remains to be seen.

Development work on the gilsonite deposits of Leyte has
been actively started by the Bryan Landon company o€ Cebu
and Uoilo. Fred Burdette, manager for the Camiguin North
Mining Co.. has begun operating on his sulphur property
on the southern end of the island of Camiguin, north of
Luzon. Some fine specimens of sulphur were recently exhib-
ited by him at the Second Philippine Exposition in Manila.
Mr. Seymour, a Wyoming coal operator at present in Manila,
is looking into the coal situation.

KM.COOTilJE. WESTERN A fSTRA II A
i

Labor Troubles Again. — Geology ami the Need fob More In-
vestigations. — Edna May. — Golden Horse-Shoe Affairs.

The labor unrest, which appears to be general in Australia,
was in evidence in this state at the end of April. A dispute
at the Edna May mine, as to whether the ground being worked
was wet or dry. was settled by the manager, who agreed to
wet wages: that is. above the usual rate for dry ground.
Then the shovelers on the Trans-Australian railway went on
strike for $3.20 per shift, the wage being paid by the con-
tractors at the head of the line; but. though the Common-
wealth Government offered an increase of 20c. from $2. so to
$3 per shift, the men are still out. The latest phase of the
unrest is represented by the fact that the committee of the
Federated Miners' Union unanimously passed a resolution
that on and after May 1 no unionist was to work where non-
unionists were employed. This step was taken in sympathy
with the employees of Millars Karri and .Tarrah Co.. who are
out on strike because four non-unionist carpenters are em-
ployed. The members of the Employers' I'nion promptly re-
taliated by passing a resolution that they would employ the
best men offering, regardless of their politics or creeds, and,
If any of the various unions withdrew their men on May 1.
all employers of the state, in whatever industry engaged,
would simultaneously close down and lock out all employees.
The result of this prompt action was that the Federated Min-
ers' Union held a general meeting on April 26, and decided
to leave the question to be settled by the Australian Labor
Federation at its meeting in Melbourne on May 11. It has
just come to light that iu two cases in which workers ceased
work and broke the Arbitration Court's award, and were
fined $4* and $4S0, respectively, by the magistrates, no fines
had been paid. On this leaking out early in May. the West-
ern Australian Government first stated that the fines had
been paid, but finally admitted that they had not. Eventu-
ally the first sunt was collected, but the larger one was reduced
to $24 by the executive. So much for labor governments.

Ever since Malcolm Maclaren's visit to these fields in 1910.
the Chamber of Mines has been urging on the state govern-

I'M I

MINING \M> m || m n it no ss

• ■ ■ 1 1 1 1 ■> of Increesli it with

. » •.. in,.

• i,l Hi.
appointed Bvt • lira Bald in 191 1 but

Instead <•! attacking »•■» (round, moal of their Ini

. .ii n [i..l i.. ..1.1 erorkingB, nr tnerclv follow
log i - ...I drawing deduction

w pot-holea *uiik The Chamber "i Mini
ihat "what it aranta i- ■ lyatematic leologleal mrvajr, ■>
rareful ..- thorough, .i- exhauetlve, and mone]

if, and it" beat qualified, the baai equipped, ami the
moat wide)] iiiiiiiin. .1 experl obtainable '" .lr.i« the deduc
none from the dma obtained.' 1 Moal nl the baa) known ....
..f the world have el one lime or other Inapacted oui
bul * nly one ol theae elaltora, Ualcolm Maclaren, baa
puMtehed the nonclualoni he drew ir.im the data obtainable
• in- «. have bad the experience ol H. P. Woodward
and s. Goaeaal, who Joined the government minis departmenl
in IK87 and 1890, reapectively! and had mapped oul th
ami mineral arena ol Weetern Australia bj 1898. In his
MuuUIhmik of the Gold and Mineral Fields of Weatern Aus
trails pntrilahed In 1894, Mr. Woodward wrote ol the Oreal
Mngall lode: "This mine is called the Day Dawn, after the
tti st claim taken up on It. The stone is of a lilulsh mottled
appearance, and the 'reer is ol great st/... and well Formed.
It Is u true Assure vein, but Joes not follow any definite
course, striking westnorthw. si. then north-northwest, and
so on to the north; but this Is not of the least consequence,
as from Its well defined walls there is very little chance
Ol its cutting out." This nilue was turned down in 1897
by the Day Dawn Co. of Adelaide, after producing £75,000
from 30,000 tons from a lens above 150 ft H was then
taken up by the Consolidated Murchison of London, and In
1898 passed on to the Great Fingall company as a derelict.
v second lens was found at 460 ft. and cut out at 1370 fi ..
and a third at 1700 ft. which still continues. Mr. Woodward.
In his Handbook,' pointed out in 1894 regarding the Golden
Mile: "There is a large break In the country consisting prin-
cipally of coarse-grained diorite extending over six miles from
north-northeast to south-southwest, near the township of Kal-
goorlie. Diabase (doleritel dikes seem to have played an im-
portant r.'.le in the gold deposits here, and It is most probable
i hat the gold emanation in the rich and extensive Kalgoorlie
district took place in the period following these diabase erup-
tions." The Kalgoorlie district is the only one mentioned
by Mr. Woodward and Mr. Goeczel as containing this quartz-
diabase, or dolerite. and none of the other geologists who
have visited the country has ever mentioned the presence of
.1 similar area elsewhere in the state, and until that is found
.. second Kalgoorlie is unlikely to eventuate.

Since starting milling a year ago, the Edna May mine at
Weston's, over 100 miles west of Kalgoorlie, has produced
(364,000 from 16,766 tons of ore and paid $103,000 in divi-
dends. As the residue contains $5 per ton of recoverable metal,
the output and profit will shortly be materially increased
when the sand and slime plants start operation. The present
i rouble is the fact that successive intrusions o£ granite even-
tually cut off the lode in the adjoining Greenfinch mine on
ihe west, and similar intrusions are being encountered in the
Kdna May. The first bar appeared in the shaft at 124 ft., and
the second has now been encountered at 200 ft. The first was
only 18 in. thick, but the second is proving considerably
thicker. The lode is erratic in strike, underlie, and thickness,
but is wonderfully consistent in gold content, and is from o to
4T, ft. wide in a generally east and west direction. Several
adjoining claims on the east are looking promising, but the
granite is making speculators shy of investing in them. No
government geologist has visited the district, but other geolo-
gists wisely shake their heads and say nothing after Inspect-
ing the Edna May and Greenfinch.

In ap

mi ii lavela ..i ihi doldeo Hoi - sh...

: Into .Li.' On lanoarj

the • redll b i |isi sin. .■ then,

•'■■I "i March I9U tat nel profll earned »» 110

a total nt 1288,00 ibentnn Internal

debenture redemption 151 i dividend paid in Oe i

•' Thla i.-m.-H si .Li. ii balance ol

1104,00 i- urn ,,i,- and the London man

aging director, B. Protneroc Jom I on hit «:» to thla
country in Inveatlgate mattera al the mine

March gold return! from all milieu In the itatc totaled
and dlvtdendi 1578,100.

SALT LAKE CITY, I TAB

Cm. n:i s miiix Alll III. lo COMPLKX Si l.l-llllii. Dm I .ivik

Mil ill I' I Ml Sol VI s Ml I M 1 I 111, Ii VI I III I I, I I I V. -4'lialx-

n\~i\ P I -s. Hoi i 111 us l-'niwn.

in the treatment of low-grade ore depoaiu Utah has long
been in the lead, being the pioneer In the development ol

the porphyry deposits. At present H is solving the i|iieHtlon
of treating the low-grade ore containing ■ combination of
lead Bllver, copper, zinc, and gold. By .Inly l!i there will
be three mills in the state treating these ores by means of
chlorinaiion. The process is by no means new, but the meth-
ods employed are. They were worked out in the University
"i Utah experimental plain something over two years ago
In X. C. Chi isiensen. a post-graduate student, and T. N. Holt
of the University staff. The first practical use made of the
work was at the Mines Operating Co. plant at Park City.

where George H. Dern anil associates have a 10-year leas i

the old slope fillings above the 900-ft. level of the Ontario
mine. Here a great deal of experimental work has been
carried out, especially in the mechanical end of the work.
At present the Mines Operating Co. plant is running success-
fully on ore that will assay about 12 oz. silver, 2 to 4% lead,
and 0.6 to I'f copper. A saving of 80% Is being made. Re-
cently a plant was luiilt for refining the gold and silver on
the ground. The second plant is at Silver City, where Jesse
Knight is hacking X. ('. Chrlstensen in a plant that Is using
the same method of treatment. The operators are just get-
ting this mill over mechanical difficulties which caused it
to run intermittently. The third plant is that of the Park
City Milling Co., which, under the management of George
H. Scibirc'i, is remodeling the old Grasselli mill at Park City
for the purpose of handling ores from the American Flag and
custom ores. This plant it is expected will be in operation
by July 15.

The method is a simple one. The ores are given a chlorld-
izing roast by means of a mixture of salt and coal. The
fumes from this roast are drawn Into a condensing tower
and later used for leaching the roasted ores. The chief
trouble thus far encountered has been with the roasting fur-
nace. As there was no one on the market that was satis-
factory, it was necessary to devise a roaster for the occa-
sion. At the Mines Operating Co. plant, hand-fed furnaces
nave been used which have been unsatisfactory' in result and
in economy of fuel. At the Knight-Christensen mill a round
furnace with a flat revolving grate, heated by means of oil
jets and a downward draft, is being tried. The roaster for
the Park City Milling Co. mill has not been selected.

A new roaster known as the Holt-Dern furnace has been
used for the past three months successfully at the Mines Oper-
ating Co. plant. This experimental furnace has 10 tons capac-
ity, but has demonstrated that it eliminated dust or any
volatilization of minerals. Besides that, it Is declared it
will save 50c. per ton in fuel. A new furnace along this
line is being designed, and It Is probable that all the furnaces
at 'the Mines Operating Co. plant will, in the future, be

MINING AND SCIENTIFIC PRESS

July 4. 1914

Holt-Hern machines, although it is declared that Dwight-
Lloyd sintering machines can be used. The Holt-Uern ma-
chine It is declared roasts more evenly than any other, and
actual tests have shown that a 10% greater extraction can
be made from the ore. The furnace that is being designed
will have a capacity of about 40 tons of ore per day. It is
8 by 10 ft., and has a depth of approximately 5 ft. The
chief feature is the grates. The grates are about a foot wide
each and extend the width of the furnace. Each grate is
made up of iron strips or bars half an inch wide and set half

of the grates is set in motion and the ore drawn off from
the hopper. Everything has been so arranged that the fur-
nace is as nearly automatic as possible. One man can care
for the feeding, the shaking, and the taking off of the roasted
ore. The ore from the roaster is placed in open tanks at the
Park City plant, while at Silver City it is removed to barrel
tanks. The barrel tanks have a filter at one end through
which the chlorine solutions are washed out. The barrel is
then tipped the other way and the waste is placed on a con-
veyor belt aod sent to the dump. The solutions pass through

DALY-JUDGE PBOPEBTY, r-AltK CITY, UTAH. ENTRANCE TO .MAIN II AMI OS LEFT.

an inch apart. The upper edge of the bara are equipped with
haif-inch teeth. Bach grate is fixed to move over a roller
bearing. The base for the bearing is also slotted so that
the material drops down. Attached to each grate is an eccen-
tric which has a movement or drag of 1% in. The eccen-
trics are run by the same shaft. When these are set in
motion the roasted cake is practically filed off, falls down
through the grates and into the hopper below. The grates
are set a half-inch apart and adjacent grates have an alter-
nate motion. Suspended through the centre of the length
of the hopper below is the air-pipe which supplies the blast
for the furnace. The feed is from the top. and the roast is
made at the rate of about one foot per hour. Arrangements
are also made for the automatic feeding of the furnace. At
the top of the furnace, which has a movable cover, there is
a flue through which the fumes are drawn off. This is operated
by an exhaust fan.

The furnace is started by covering the grates with several
inches of ore over which is spread chips soaked in oil. As
soon as this is well under way, the feed, which is ore mixed
with salt and coal, is started. This makes a continuous
operation, with about four feet of ore and roasted material
resting on the grates. As roasted ore is needed the shaking

launders to precipitating tanks. The leaching by the barrel
tanks takes about five hours.

SYDNEY, NOVA SCOTIA

GOLD MINING hi Guysbokough County. — Wateb Power Avail
able. — New Railway.

Within the last few months, gold mining in this provino
has received a little more impetus from the steady yet
quiet success of one or two operating companies situated
mainly in Guysborough county. During the last year a total
of 7324 tons of ore was mined and crushed, yielding on the
average $fi,14 per ton treated. This is about the same return
as the previous year. Most of the gold extracted was ob-
tained from four mines, and of these, three, the Beaver Dam.
Caribou, and Gold River, had a profitable year, the yield
being $12. $14.50, and $15 per ton, respectively. In compar-
ison with these results, the remainder of the mines in oper-
ation show a low average return. Nineteen companies in
all were at work throughout the year or during part of it.

A scarcity of fuel and the transport difficulties have al-
ways been drawbacks to sold mining northeast of Halifax

Jnl.v 4 l'i|»

MINING WD 91 II \ l ll K PR

111 Hir .riirnl ».!»..- --rlliatU' M I • 11B £ I' 111 > IK , S((r||

tlun ha-, been dntg i,. ll,, »„•.

although most ..; the caichmeni »»< are nestled, en

or ih. topograph! i>t tin hi ...I .in, in,. i

io ailvant,, In |o ,.

.■•I lurl mul III, high

Al (ll-- mm, ■'( ill, QoldenvUIS MIhiuk Co. u dam ha* been
built al U>< rails, which kIi. si In t( , anil

thi» t providaa appratlmati Ij

&oo b|i . tiniii iiiuiuu in pumping mul crushing operal

III.' building ,ir a branch iaii».i\ in iiam, through (In- mm
inn districts ol Halifax sod Quyahorougb, running (rani Dart-
mouth mi li.iiii.ix iiiiriior northeaet, mul passing iii<- beads
o( ail (hi- harhovi »u i in- ooaal "i Canao mul Qojrsborough,
on (in- suaiis ,.i Canao, baa bass started, Whan Bnlabad,

(hi- I ill,- »ll! -i tO (hi- in I [ll li u cnmpmii,

n-Kuni to (h>- aaaj transport «' machinery end supp

Nona or ih,- raoanl <i "t tin, tungsten, manganese,

and antlmonj area haw proved to be ol anj greal value. On
ih- longaten ana, ooJj aboat l" ions ol acheellte was ex-
tracted, although eonalderablt development and prospecting
work was undertaken by the company, Operations have ceased
satire]] on the antlmonj sreaa al Weal Bore, Tin- discovery
in manganese, recent)} reported in Quyaborougfa country, is
mul unproved, The on- is a One-grained pyrolui

DAW80N, YVK0.\ TERRITORY

SiivikI.im- On "l CHS DlBTBlCT, vm> WOBK ON nil SELVES
Kin,., Aua.11, Win FOOT, i.ND M aw i: CLAIMS,

Sin; live ions o( Bllver-lead ore, assaying $250 per ion
has been hauled from the Silver Kim; claim to Mayo landing
on th,- Stewart river, for shipment to the Consolidated Mining
A Smelting Co."s smelter al Trail, B, C. The Silver King is
situated 28 miles northeast ol .Mayo landing. The vein where
i,,-, I in i it. wide, Btrlklng approximately south IB' west
with a dip Ol '■-' east. Both walls an- well defined. The hang-
ing wall is schist, an, I the foot-wall quartzite. Development
work is being ilon, through an Incline shaft, which has reached
a depth of 70 tt- The owner of the property, II. \V. Mc-
Whorter, Intends to continue the shaft to the 300-ft. level this
summer. On the Adam claim, 2300 It. from the shaft on the
Silver King, Mark Evans has uncovered a vein 5 ft. wide, with
two bands of galena in it. varying from 1>_. to 3 in. wide,
which assay high in silver. As he is prospecting nearly in
line with tin- strike of the Silver King vein, it is no doubt
a continuation of (he same. Owing to there being from 10 to
_ ;t. of frozen gravel (glacial drift) to sink through before
reaching solid formation, and which makes prospecting for
(he vein both slow and expensive, .lack Alvinson and J. E.
Ferrel, owners of the Web Foot claim, adjoining the Silver
King on the northeast, have tilted up a churn-drill to prospect
with. Grant Huffman, on the Mable claim, has a shaft down
28 ft. and intends to drive and try to cross-cut the vein.
Fifty-four claims have been staked and recorded in the vicinity
of these properties; not having a summer road, quite a num-
ber had provisions and supplies hauled in before the snow-
melted and will prospect during the summer. The Yukon
Council has voted for an expenditure of $17,000 for roads in
this district this summer, $5000 of which will be spent build-
ing a road to the silver-lead properties. The appropriation
of $17,000. while not sunicient to build many miles of wagon
road in a country like this, is evidence, however, that the
Dominion Government will be willing to do more as develop-
ment of the district proceeds. The opening of rich silver ore
has attracted a great many prospectors, and quite a number
are out in the hills around here this summer. The outlook
for the future is bright for this district. A stampede is
neither expected nor desired. As yet the properties are in
the earliest state of development. A prosperous and steady
producing mining camp will be here in the near future.

W » TOBK

C.NM, ll, I , /.|S, ,' ,,„,

'"" N ''« Comim ii \t,.„, Bffaijsii ciinu i I-.,,,,

BADO.— Llin.Mli-v

Uldsun i ih slwayi unproductive ,,r sews In I

and <l„ .i.lil. „( the WW

ih, Connecticut Elm « ,,i Wyandam

Incorporated, with a capital or ti.oun.ooi>. i„ mini

in .\v» v,,ii, and atlaa 1, The Inoo m William

i; PblUlpa, whn baa promoted other ilm nines Michael

I, Rlordan, „ Da iratlo politician ol Brooklyn; and Hugh

in, ol Port Richmond, Btaten Island. Th< Ignlncaaci
oi Wyandaugb is no' dear; the nearest approach

i, an,,- is the village of W> an.lan, h. Hot far heyoli.l Hicks

Vllls, on Long Island.

Th,- Chattanooga Co -r Co., capitalised at »."

1 n organised, I. I. Carter being president; John Stag)

tiisi vice-president; •', ft Miller, second vice-president; s
E Whltaker, secretary; and p. it. Carter, treasurer The
Company owns 200 acres of laud a short distance sort
of the Duofetown Sulphur, Copper & Iron Co.'s property in
the Ducktown district, Tennessee, which it has been explor-
ing by diamond-drilling. Evidently the results have been
BUfllClentl] encouraging to justify further exploration. The
Ducktown district Is an old one, and it would be Interesting
if a new producer should he developed there. Those In-
terested in the new Company are, as the name Indicates, all
business men in Chattanooga.

An American property of which we hear little on this
side is the St. John Mines (Colorado I, Ltd., on the west
side of Glacier mountain, about one and one-half miles south
ol Montezuma, Summit county, Colorado. Last year E. J.
and B. I.. A. Munby sold a group of 19 claims containing
silver-lead and zinc ores to English investors, who have
formed this Company. E. H. Piatt has estimated that the
ore reserves amount to 93,000 tons of probable ore, .and
23.000 tons of stope-fllllng which can be milled. The mill-
ing ore is said to contain a gross content of $30 of silver-
lead nnil zinc, while the high-grade ore now being shipped
to smelters is said to yield $35 per ton net. Development
work is reported as showing good ore. The mill is being
remodeled. The Company is capitalized at £75.000, and 255.000
out oi the 300.000 shares have been issued. For the prop-
erty, £3000 in cash and £30,000 in shares was paid, while

t2n. > cash and £5250 in shares was paid to the promoters.

Several large companies have had a good deal of trouble
with litigation lately, and the minority stockholders in the
Alice Gold & Silver Mining Co. have started a suit against
the Anaconda under the Sherman anti-trust law, as men-
lioned in this journal of June 27. Probably nothing much
will come of the suit itself except to relieve the 'psychologi-
cal depression' in the legal industry. E. A. Wall has with-
drawn his petition for a receiver for the Consolidated Cop-,
permines, and the reports which are always circulating as
to the plans of that Company now say that an experimental

dotation plant will be built. W. O. Allison has succeeded

in his attempt to oust F. A. Heinze from the Ohio Copper
Co. New rolls are being put in the Ohio mill, and its capac-
ity alter July 15 is expected to be 3000 tons per day. Just

now 2000 to 2300 tons per day is being milled. The Old

Dominion litigation still drags on its weary way. Not long
ago the Court of Errors and Appeals of New Jersey, the
highest court in the state, issued a decision permitting the
Old Dominion Copper Mining & Smelting Co. to pay a spe-
cial dividend of $10 per share, amounting to $1,620,000, out
of the proceeds of its action against A. S. Bingham. God-
frey Hyams. who sought to prevent this payment, is indefat-
igible in litigation, however, and will doubtless at once bring
fresh suits.

MINING AND SCIENTIFIC PRESS

Jnlv +. 1!»H

IMEMG SUMMARY

The news of the week au t"l<l by our special corre&pondenta and refected by the local pre**.

ALASKA

ClUSA \ V

Recent arrivals at Dawson state thai there in nothing being
foniiil at C'hisana outside ol last rear's discoveries. Wood

MAC SHOWING SITUATION Or (IMSANA DI8TB1CT, \l\>KA.

costs $l»u per cord. It is doubtful whether there will be
over BO days' sluicing for the season.
Idttabod

A new dredge is being constructed on Otter creek for Riley
and Marston.

ARIZONA
Cochisk. County

Largi • rushing machinery has been delivered at Hie Junc-
tion sliaft of the Calumet & Arizona property. It will be
ready for work in a month or so. and will handle about
1 I"" tons of sulphide ore per day from this and the Briggs
shaft. Later on the Hoatson ore will be sent to the plant
also. Cutting of the large pumping station at 1800 ft. in
the Junction shaft is proceeding satisfactorily. This station
will probably drain the Dean area, as well as upper levels
in the Junction. The company will add to the electric equip-
ment of its plant a belt-driven General Electric generator.
mperes at 24 volts and 4Snn amperes at 12 volts, with
direct-connected exciter.

Through Walter Douglas, the Phelps-Dodge company has
bought the Tombstone mines for $500,000 from the receiver
in bankruptcy, A. L. Grow. This was the only bid for the
property. Heavy flow of water has hampered work at these
mints in the past.

Gii.a County

(Special Correspondence.) — Underground work in the In-
spiration mine has been hindered by shortage of air. Another
compressor is now at work supplying 3000 en. ft., making a
total of T",00 cu. ft. per minute available. At the new mill
the trestle should be finished in a few days. A composition
loofine material is being laid on the main mil] building. A

good deal Of riveting remains to lie done on the concentrate
bins. Work * in progress on the concentrator transformer
and distributing station. The latest addition to the test-mill
is five .Metals Recovery Co.'s pneumatic flotation machines
and auxiliary equipment, which are to be given a thorough
test to compare their efficiency with .Minerals Separation
process. Although the two professes depend upon the same
basic principle, the means of acquiring the final result are
quite different. As soon as the necessary parts are received
from the Kast. a series of experiments are to be started with
the Bradley preliminary crushers, to determine the best steel
for rolls and dies. These machines, which gave good results
mi a dry brittle ore. were found to wear excessively in crush-
ing the Inspiration damp ores, but with a change to one.
or a combination of modern steel alloys, it is thought that
much' better results will be obtained. Work is proceeding
on the power-plant at the smelter site. Foundations for the
turbo-generator have been poured. As the new 25-ton slag-
pots, recently received, are not designed for fast haulage
around sharp curves, the idea of obtaining slag from Globe
for the reverberatory bases lias been abandoned. Instead.
a blast-furnace obtained from the Old Dominion smelter is
being erected on the furnace site, so that the slag can be
made as required. The furnace will probably be ready within
a week, and the foundations will be poured as soon as pos-
sible, as this work is already far behind.

Miami. June 28.

Santa Cat/. Coixtv

In the lengthy suit of F. .1. Heney for a third share in the
Three R. mine, the court at Tucson awarded him 1200,000 on
June 2ft. Full details of this case have been published in
The OasiH of Nogales.

¥"ai u»*j County

(Special Correspondence.) — Good gold-bearing veins have
been opened by prospectors on Curry creek, and Granite

creek. Two feet of galena ore has been cut at 400 ft. in the

Swastika mine. It is similar to the ore shipped some time
ago, and whicb contained up to 800 oz. silver per ton.

Mayer, June 2.",.

CALIFORNIA

Amadob County

(Special Correspondence.) — In the suit of the Kennedy Ex-
tension Mining Co. V. the Argonaut Mining Co. for $1,000.-

i tor wrongful extraction of ore and other claims, Judge

Fred H. Wood gave his decision on June 29 in favor of the
Argonaut company. The latter Company is entitled to retain
the gold recovered from ore from the vein in dispute. The
principal issue was as to the ownership of the Argonaut vein.
The plaintiffs claimed that no vein apexed in the Argonaut
from end-line to end-line, and that the orebodies in dispute
were not on the Argonaut vein at all. but on a vein apexing
in the Muldoon claim, owned by plaintiff. The defendants
upheld the continuity of the Argonaut vein, showing that it
could be followed from the north end-line, underneath a lava
cap, southerly through the claim beyond a point where it
would cover the orebodies in dispute. They were also able
to show that continuous stoping had taken place from the
bottom of the Argonaut mine up to the 280-ft. level, and that
from there to the claimed apex underneath the lava-capped
lode line the vein could be followed all the way, although not
of large or high enough value to justify further stoping

July 4 l'i|i

M1MV. AND St. II Mil It I'M SS

The l IIIOD ol the

routlnuli < •>> thi v< n> >" I

< I u>t iik flml in OVOrtnTOSt fault, llo-

which ».«- prartlcall) conceded bj experts for

.mil In addition lo ill. il faulting "t »•■*

rral hllllilr.i! feet Which tin* Claimed uinild dOStrO) lln- vein

eonUoolt] ol iti«' Argonaut. Thi ••.■ii>i>>>> ol the court II nol

bvbIUi il ibli nun Tt — tried

(or ihr I'liiiniirt b) Measra Perrj and Dellay, and (or the

ml bj Hum Curtli H Llndle] Mid William B

Colbj all "I San Kl.m.N. .. \ 1...111 Cable In LOUdOO

■bowed Hiii thi Plymouth Consolidated equipment •

rollowi shad guldi in plan-, mill <:'■■■ completed,

\nil build impleted

- «nii .Inn.

Ill 111 Col KT1

The Qnggenbetm Interests, through tin-ir manager, C
■oqnlred ■ bugs ana of ground on Butte creek,
Rve miles from Chico. This wan owned b] the Drexler people.
One ol the Company*! dredges al Orovllle is lo be dismantled
nnii rebuilt "ii tbe new site ibis summer. The dredge operat-
ing on the American river near Auburn is returning good
results.

Nivai.i Cot It 1 1

The North Star Minis Co. has declai'til lis second i|iiai lerly

dlrldend, of |S0,000, for the current year. The Brunswick

Consolidated has also declared a dividend "I Be, per share.

amounting to $IS.00O. The annual meeting of the Zeibrlghl

Minim: Co, was held In Nevada t'ii> on Jnne S3, Develop-
ment is to be commenced on lis property In Bear valley,

i'l ni v-. COl v iv

The copper deposits on the weal slope o( the easi range
Ol thi Sierra Nevada, to the northeast of Indian valley, and

f '"»■'' x^'vCcffi

PLUMAS - i

!/^KiddT\ ~,

./ co OSn t y

-* >

4 \ J '"- v r 1

~l •s-^ < ~*~' y/ *^

f Lakt (

f rrnioA

si <y

*\ s

^Zi^^? Siciamento

•-1 v *<

°"°- f

a svn

-r.ncuCO /

v -- 1

\ / SCALE OF MILE8

6 |.| si in 4b A

■<OS

MAC SHOWING SI I IA I ION OF TI1K ENQELS MINE.

embraced in the claims of the Eugels Copper Mining Co., are
described in Economic Geology for June, by H. W. Turner and
A. F. Rogers. The nearest railroad point is Keddie on the
Westers Pacific line, 30 miles distant by wagon road. The
ore in the main Engels mine occurs in a fresh massive

.ti.ni 1 1 . ibundani metallic m

magnetite, bornlb |,

absent in thi Bnperloi ml

"J thi '• i , Hi. ..-i minerals srs chwffj ilom ktlnl

planes, and sppear n ■ llant reins Ths ors i» bornlti and

chalcopyrite In u gmngus "i ■ gram iiin.ni. hornblende \

160-ton mill employing ths Minerals Baps i notation

i» being erected i" I real thaw i u pro*

men are employed under the dlrectl i I B Paxton

Sli mi, OOI H ll

iBpeelal Correspondence. I v ::,.,..i level >nl was mads

recentl) In the Motor gravel mine, in the Port Wine dl

The gravel to tar averages about $m per cu yd Operations are

conducted through a UOO-ft. adll \ \i Davis Is manager.

The Iowa .ii in inin. in ii,,. Scales Diggings district, Ih to be
developed bj Ban Francisco ami Oakland people in adll

I i long will be driven to cut the lava-capped chai I.

Win. C. Pershbaker is consulting engineer,

Porl Wine. Ji 25,

The Kate Hard) mine, on Oregon creek, is developing well.
High-grade ore was cul recentl; In a raise abow the main
adit.

A verj rich shoot of gold on- was opened In tin- Tlghtner
mine at Alleghany on June 29. For several days the mine
«as producing about 11000 per day. and tbe new shoot has
j i, Ided $1". so far.

'I'l 'III I ,1 M I 'ill .VI V

(Special Correspondence.)— The Omega mine has been
bonded to Mrs. U. A. Capell and Mrs. A. D. Ireland, ol Ball
Lake City, and operations will begin Immediately under the
direction and supervision of Joseph Loney, The properly has

1 n extensively developed by C. W, Avers, and is equipped

wiih modern mining and milling machinery, it is rated among

i hr most promising mines in the Rawhide diisrlct. Rich

ore is being extracted from a mine near Steven's bar bridge
by Fred Klein, owner of the property. Good results are
iihlained by grinding the ore in an arrastre, but this method
may be abandoned and a mill erected if prospects continue

good. The vein is about >> ft. wide. Development work

has been in progress for several months at the Louisiana mine,
mar Tuolumne, and within a few days the milling of ore

will begin. A large compressor has just been installed.

The shaft of the App mine, at Stent, is being repaired, pre-
paratory to active mining operations. Tbe property is in

charge of Alex. Chalmers. The vein at the Wheal Rough.

near Soulsbyville, has been cut 300 ft. below the surface, and
driving east and west will be commenced at once. The vein

assays well where cut. The adit which is being driven to

drain the Springfield Tunnel & Development Co.'s mine, and
which will be more than a mile in length, is in 1300 ft.
W. M. Hall, of San Francisco, and S. Bogle, of Tai-oma. two
nl the directors of the Company, have just returned lo Iheir

homes from a visit to the property. The new 5-stamp mill

al the Hop- mine, near Sonora. has been in operation for
several days, and il is reported that the ore is yielding
satisfactory returns.

Sonora. June 27.

The old Sugarman mine, on Bald mountain, is yielding lis
owners some rich pockets of gold ore.

COLORADO

Gilpin County

After being shut down for about six months, operations

are to he resumed at the du Pont-Kelley syndicate mines at

Quartz hill, the German. Whlte-Klrke and Belcher, which

produce high-grade uranium ore. Forbes Rickard is manager

Montrose Coi'.nty
I'm-iy tons of carnotite ore averaging 12'; uranium oxide.

MINING AND SCIENTIFIC PRESS

Julv 4. 1!M4

and worth $43,200, was shipped from Sallda to New York
tin Jane 23. It cane from the Paradox field. The cost of
mining and delivering a ton of this ore averages $65 per ton,

til «hich $::l is tor mini";;, and $25 for transport.
Turin Col'XTY (CRIPPLE t'lll.tKI
tl is expected thai preliminary work on extensions of the

Roosevelt drainage tunnel will lie finished in a few days.

The Howard shaft of the Mary McKinney company is to be
sunk from 600 to Trio ft. Regular ore production is coming from

this shaft. Eighteen inches of ore worth $40 gold per ton,

and containing seams of sylvanite, has been cut at 100 ft. in

the Cold Bond mine on Gold Hill. Rich 'float' ore has

I. i round on some fractional claims on the south slope of

Beacon hill. The Golden Cycle company has completed a

s at inn on No. 17 level, and is now cross-cutting to the ore-
shouts. The shaft is being sunk 125 ft. deeper. The electric
pumps at No. 16 level are raising 450 gal. of water per minute.
The Company is mining 5000 tons of ore, and 25 sets of lessees
are extracting 2000 tons per month. Dividends totaling $270,-
000 have been paid this year.

IDAHO
Idaho Codkty

A good deal oi interesting work is under way in the Ell;
City district A .'.-stamp mill is working at the Black Pine

mine. H. B. Bupplee is manager. Development is being done

steadily at the Colonel Sellars. and Mrs. M. A. Parr intends to

en-ct a mill. In the Strong claims is 8 ft. of $8 to $17 ore.

A 20-ton mill is operating at the Mascot. A. Kincaid has

given a bond to Theodore L.' Lammers of Spokane for the
Evergreen Consolidated and Dewey groups, consisting of n
claims, about eight miles from Grangeville. on the Clear-
water river. The bond includes all equipment on the prop
erty, also a fine assay office, and water for 250 lip. from this
river. About 7000 ft. of development has been done on the
property in the last 15 years, and large bodies of gold-copper
ore are opened. The equipment will be Installed by Spokane
manufacturers, and will first operate on the hlgh-gradi
milling ores from the St. Patrick claim.
Shosiiom County

The Yankee Boy Mining Co. shipped 271 tens ol ore worth
{35,461 in 1913, making a profit of 310,915. Profits of all
this county's mines last year now totals J4.7S7.690.

The Bunker Hill & Sullivan company paid dividend No.
202, of $81,750, on July 3, making a total of $15,301,500 to date.

Men are overhauling the Blackborse concentrator, in the
Murray district of Idaho, to he used for milling the ores
of the Paragon Consolidated mine, of which L. W. Stedman
is manager. New rolls and a Harz Jig have been Installed,
and it was expected that the alterations would be completed
last week. The Paragon ores contain lead and zinc, and it
is said the Blackhorse mill does good work separating

both, saving approximately 75 r ; of the metal content. Work

has been resumed at the St. James mine, adjoining the Sun-
set mine, on Sunset peak, near Wallace, owned by W. A.
Clark.

MINNESOTA

One of the worst storms of recent years was raging on
Lake Superior at the end of last week. Many steamers were
reported in trouble and there were rumors that three sank
on the north shore. All telegraph and telephone wires are
down. The large steel steamer Mataafa stranded on the
breakwater piers while trying to enter Superior harbor on
June 27. She was released and towed to the Great Northern
locks.

M/ssonn

Jasper County
The Clifford Dry Concentrating Co.'s plant at Duenweg is

being dismantled, after experimenting for over a year. A

flotation plant Is being operated by Hays & Thomas on the
Underwriters' lease, west or .loplln. The process is a 'secret'
one.

MONTANA

Montana's mine output of gold, silver, copper, lead, and
zinc in 1 H 1 ::. according to Victor C. Heikes. of the l". S Geo
logical Survey, was valued at $61,900,546, against 364,754,613
in 1H12. a deojease of $2,864,067, due mainly to the decreased
output of gold and copper. The value of silver, lead, and zinc
combined was $3,771,202 greater than in 1912, while the
value of the gold and copper was {6,625,269 less than in 1912.
The production of gold in 1913 was valued at $3,493,432, as
against $3,626,236 in 1912. The production of silver in 1913
was I3,S19.?01 oz„ against 12,731.638 oz. in 1912. Copper
decreased from 309,73S,873 lb. in 1912 to 2S7.X2S.699 lb. in
1913. Lead increased from 7,446,749 lb. in 1912 to 10.935,827
lb., in 1918. Montana's zinc ores in 1913 yielded 88,673,083
lb. of spelter, against 26,918,881 lb. In 1912.
Cascade Count*

Work on the new power-plant of the Montana Power Co.
at Great Falls, on the Missouri river, is so far advanced that
it is likely that part of it will be in operation by January 1.
I'M.". At the dam. 50,000 cu. yd. of concrete has been poured.
the daily rate being from 1300 to 1400 yd. Power-house foun-
dations above water-level are finished. Six 15,000-hp. units
are u> he installed. About 500 men are employed in the
camp. Six miles upstream, at Rainbow falls, the Company
has six 6000-hp. units at work. At Thompson falls, on Clark's
fork of the Columbia river, a plant of about 40,000 hp. is
iiriuu constructed. The St. Paul railroad will probably take

. I hp. from the Great Falls plant.

Sn \ bbbow County.

The Edith Ma\ vein has been cut at 2S00 ft. in the North
Butte mine, where it is 3'_. ft. wide, assaying 12.59! coppei

mill 13 oz. silver per ton. The Anaconda company will add

to the electric drive equipment of its plant Hi induction motors

ranging from 25 to 50 hp., all of which have been

from the General Electric Company.

NEVADA
Cm in iui-i. Cot is ii

The Nevada Hills Mining Co. reports as follows foi Mai
Ore treated, 5300 tons; average value, $7.99 per ton: loss in
residue. So.Sc; net profit $5251: development, 54.s it
$1.08 per ton; total resources. $220,893. Profits were reduced
by shaft sinking and other work.

Eureka County

Following the addition of a toothed roll crusher, ball-mill.,
classifiers, a 14 by 24ft. Oliver filter, and other apparatus, the
Buckhorn mill is now treating 300 tons per day. which i^
almost full capacity.

Esmeralda County

The Goldfield Consolidated Mines Co. acquired S7' .,. or 592,-
000 of 6S0.5O0 issued shares of Aurora Consolidated, which
is capitalized at $1,0011,000. the basis being $877,000 valuation
of the entire property, including the mill which has a capacity
ni 500 tons per day and has just commenced operations. This
price is $225,000 less than stipulated in the original option.
The Knight directorate has resigned and George Wlngfleld
was elected president. A. H. Howe, secretary-treasurer: other
directors: Albert Burch, .1. H. Miller. Charles E. Knox. Frank
Manson. and Henry M. Hoyt. The mill was designed by Kirk
and Leavell of Salt Lake City. Mr. Leavell, who remains in
charge several months, will be succeeded as manager by L. H.
Metzger, who has been with the Goldfield Consolidated six
years, latterly as mine superintendent.

The Goldfield Consolidated Mines Co. reports as follows for
May: Development totaled 2388 ft. at a cost of $6.91 per foot.

Jul) 4 l'M4

\II\IV. \\i> m II Mil h I'KI SS

' It n[ III 1 1 11 Ilk;

nothing Ol Hill"

mblnatloa Clermont and Red i mlM

-in ob Ihi in ii" Bl tlon ol Hi-

ktohawl mine » ■ -t to ihi north, and produced U

| On ih>- !'■ IB Um Kranclii Mohawk

I waa ran mi.'ci mil prodOMd 111 low

Ol 111 or. lin Um -....ml level tb< 148-B kIII In Ih. Mohawk

\.-m waa extended iin.i i lucod ISO lona ol 110 ore Develop

.i level in ih.- Mohawk Jumbo vein produced

i« i>( ill in.- Tli.- tint -III mi ili«- (ourlh level In the

d produeod 113 tona oi $i" ore. Development in

lhawk vein BMI ih.- nl.l t"'T ItOPe, between 111.' Ililril ami

■ level* produced 160 Hum of $14 ore.

ill... are treated yielding ■ nel profli

<>f 1166,048 Toil ate 16.81 t"-r ion. Includlni %:'■ .07

ior lulu i uu nml development $i 68 for treatment, and Be. foi

. v.iininiiiL tb( torora mine In Mineral oounty,

Hum u Col N M

Bamplei from the Beven Troughs Coalition mine a) 1160
and ISM ft. depth vary from $'.m to J-T^T per ton, On the
Former l.-v.-l 10 In, ol - been opened for 190 ft. A

■mall cur of concentrate recently returned $883 per ion.

Nil i '. 1 1 \ n

it l» reported thai the largi property oi ih<- Commercial
Mm.- & Ullllng Co. is under option to outside capitalists.
The claims included arc the Crescent, Rellly Fraction, Jump-
Inn Jack, Btray Dog, Little Grey, Indian Camp, and Chipmunk,
also share Interests In the Mustang, April Pool, and others,

with control of tin- War Eagle 20-stamp mill A

head-frame has been erected al the White fans. The vertical

shaft Is to be sunk from 210 to 3io ft. At the Associated

mill, the Consolidated will use 10 stamps, a tube-mill, and
cyanide plant.

Daring the week ended June -'7 the mines al Tohopah pro-
duced 11,806 ions of or.- worth 6301,766. On July 21 the

Tonopah Mining Co. will declare a dividend of 2-ic per share,

amounting to $250, Profits for the last three months

total $880,916. At 1020 ft. in the new shaft of the Extension

mine, tin- Murray vein is 23 ft. wide, averaging $20 per ton.

Of this, -i ft. of sulphide ore is worth $H"> per ton. -At 980

ft in th.- Merger, the on- shorn is 10 ft. wide for a length of
800 fi.; at 1070 ft.. 4S0 ft. long, of great width In places; and
at 1170 ft.. CSj ft. long, the lirst shoot of 400 ft. lining worth
$20 pe r ton. Shipments in 1914 to the end of May totaled
3223 ions worth $57,611.

OREGON

BAKfll CiUMY

The Independence mine, near Granite, has been unwatered.

C'yaniding tailing at the Red Boy will be continued until

November. Mill machinery is being hauled from the Psyche

to the Last Chance mine in Cable Cove. There will be

drilling contests between miners from the Mammoth and

Columbia mines on July 4. Work at the Buck Gulch placers

has been stopped for the season. Work is to be started at

the Mayflower claims north of Sumpter. A new company

has been formed at Baker to work a limestone deposit in
Pleasant valley.

WASHINGTON

Ferry Counti
(Special Correspondence.) — At 400 ft. in the San Poil Con-
solidated mine, a new orebody assaying $15 per ton has been
opened. In the south end of this level a drift is being ex-
tended to cut ore developed at 300 ft. The mill is treating
95 tons of ore per day, about 30 tons coming from the Knob
Hill mine. A new assay office has been built. The Knob
Hill is also sending three or four cars of ore per week to
smelters. More litigation has been started in this camp, as

* I i .-■ i .. ..ml U i i. ■
Michigan, »r. lulng ihi North n Powei *

il ■ ••»•■ I liiortKHK.- tor f I

pan hoard, i. in ti i.Hik« a- ir ih. presiding Judge -.t ii>.
.•.mi win hold iiiui and other creditor! would

laldered Ih-i.m.- the mortgagee and all credlto

polled li, li.ii, alike.

Republic, June 10

I VADA
AmritTA
(Special Correspondence.)— Dark oil l» reported in th.-
Monarch well, section 6, T. II n it. I v> on Red Dear nvi-r

A little dark gl n oil was brought up in th, bailer and

drilling stopped until tankage could be provided. This writ
itarted near the base ol the Edmonton shale and al MO tl
where Mopped, should be In the Bearpaw ahi he top

,u the Moiiiana formation.

Calgary, .h 22.

l tic 1 1 1 - 1 1 CoLuimu

According to I. M. Wolbert, representing Spokane,
and Kaslo people, a dredge costing from $l2. r ..nnii m JlT.'.iion
will in- constructed on the Lardo river al Qoldhlll this sum
im-r. A railwaj runs mar the site, so transport will I.-
Al present, a Philadelphia syndicate is working a drag-line
dredge In this district, ami obtaining 7-">c. per cubic yard iron

12 tO 16 ft. depth.

Oh IARIO

Official returns ol mineral production of the province for tin
Aral quarter "i 1914 show the following results: Gold ore
I. 112,826 ions yielding $10.66 per ton. of which PoTCU
pine produced 104,880 tons averaging $10.96 per ion: silver ore
ed from Coball (94.49! of the total), Qowganda, South
Lorrain, ami Casey, 163,066 tons, which yielded silver worth
$490,894 less than the same period of 1918.

M KIM. I V-M AlllcAnll MINK. COBALT.

Trenching on the Tough-Oakes ground uncovered a new
v. in near No. 3. The latter averages about $120 per ton over
10 in. width lor Sun It. High-grade ore is being crushed in
tin- mill. Metallurgical tests are being made on the ore.
Yukon

Canadian Klondyke Co.'s dredges produced 3351 oz. gold
during the second week of June.

MEXICO

American employees of the Crestou-Colorado, in Sonora.
and El Rayo and Dolores mines, in Chihuahua, of the Mines
Company of America, have returned to their respective prop-
erties for the purpose of resuming operations, or carrying on
development work. No effort is being made to resume opera-
tions at La Dura, as this property is situated in the Yaqui
territory, and in a district where it will be impossible for the
Constitutionalists to give as good protection as in the case
of the other properties.

MINING AND SCIENTIFIC PRESS

July i. 19H

JPEIRSGMAL

SOCIETY MEETINGS

H. K Welch has gone to Alaska.
C. C. Derby was Id San Francisco.
s. J. Kinder Is back from Honolulu.

A. R. I.eihmx has returned from Europe.

I). W. Bhinton is visiting friends in the East.

F ('. Alshorf is in Washington examining mines.

\ G. Ciiarleton left London for Norway on June 27.

C. W. MERRILL has gone to Lake Tahoe for the month.

CHARLES F. Rand has returned to New York from Cuba.

Thomas T Read is visiting the Lake Superior copper mines.

Theodore I. Hoover has returned to London from Burma.

JOHN C. RaxbtOS has been in New York for the last few
weeks.

C. C. Broadwater was in New York last week, returning
from Europe.

F. .7. Basedow was in San Francisco going from Ray to
Salt I.ake City.

.1. A. Holmes will be at Fort Bayard, New Mexico, for the
next few months.

J. E. Spi'rr examined the Tonopah Mining Co.'s property
In Nevada last week,

Marshall Draper, who has been examining mines at Nevada
City was in San Francisco.

Walter H. Weed is in Butte, testifying as expert witness
in the Anaconda-Pilot Butte lawsuit.

B. J. Padshah and C. P. Peris, who were in San Francisco
Inst week, have sailed for the Orient.

C. A. Brows and J. A. Holmes. Jr. are taking motion
pictures of striking mining and metallurgical scenes through
the western states for the TJ. S. Bureau of Mines.

('. M. Means, of Pittsburgh, has been appointed consulting
electric engineer with the U. S. Bureau of Mines.

Harry R. Johnson. W. R. Calvert, Ralph Arnold, and'
Leon J. Pepperbebg are among the oil experts at Calgary,
Alberta.

Kih.au Riikakii has been elected president of the Mining
and Metallurgical Club of London. H. Livingstone Silman
is vice-president, and SIDNEY H. Farrar. treasurer.

W. G. Carpenter has resigned from the Goldfleld Consoli-
dated mill staff and has accepted a position with the Syndi-
cate Mining Co., Aroroy, Masbate, Philippine Islands.

Albert Burch will have the management of the Aurora
Consolidated property as well as the Goldfleld Consolidated
Mines Co., now that the Goldfleld Consolidated has acquired
control.

Arthur L. Walker has been visiting metallurgical plants
in Michigan and Montana and will sail on July 9 from Van-
couver for a holiday visit to Japan and China, returning by
way of Sue/.

LUDW1G tin in has had the title of 'professor' conferred on
him by the Prussian government, in recognition of his six-
teen years' work In advancing the metallurgy of gold and
silver, through the use of tube-mills and other apparatus.

H. W. Hardinoe left New York on June 22 for the Cobalt.

' 'i tie. and British Columbia districts of Canada, and

Alaska. In returning he will visit most of the Western

mining states. Mr. Hardinge will be gone until about the

>nd week in August.

Karl Bebnson, construction engineer for the General
Electric company of Salt Lake City, has gone to Miami, Ari-
zona, to superintend the installation of new equipment in
the mills of the Inspiration Consolidated Copper Co. and the
Miami Copper Co. He will later go to Superior, Arizona, to
superintend the startins of the new mill of the Magma Min-
company.

JULY
Northern California and Southern Oregon Mining Con-
gress, Ashland, Oregon 9-10

AUGUST

American Institute of Mining Engineers, Salt Lake City 1014

British Association, Adelaide, South Australia 8

Canadian Mining Institute, Rocky Mountain branch,

Banff.

Lake Superior Mining Institute. Marquette. Michigan.. 17

SEPTEMBER

American Chemical Society, Montreal 15-18

American Institute of Electrical Engineers not fixed

Colorado Scientific Society, Denver 3

OCTOBER

American Institute of Electrical Engineers 9

American Iron and Steel Institute 2:1-24

Colorado Scientific Society, Denver 3

NOVEMBER

American Institute of Electrical Engineers 13

Colorado Scientific Society, Denver 7

DECEMBER

American Institute of Electrical Engineers 11

American Museum of Safety 11-20

American Society of Mechanical Engineers 7-8

The University or North Dakota Quarterly ,l<rurna\ con-
tains a good deal of interesting reading matter in its 70 pages.

Massachusetts Institute or Technology has published a
bulletin giving names of graduates of the class of 1914. and
titles of theses written by them.

The COLORADO SCHOOL OF Mines has issued its Quarterly, and
also a book of views of this institution at Golden. The publi
cation deals with the college calendar, the faculty, description
of the school and plant, and courses given. The summer
school lasts from July 20 to August 29. and the first semester
of 1914-15 starts on September 8.

Old Fbejbebgebs in America met in New Y'ork City on June
13 in honor of Dr. Friedrich Kolbeck, rector of the Freiberg
Bergakademie, Saxony, Germany. Dr. Kolbeck came to this
country to represent the Royal Mining School at the fiftieth
anniversary of the School of Mines, of Columbia University.
Dr. Kolbeck said that as he had come over to help celebrate
this anniversary he hoped to see a number of former students
of Freiberg back to celebrate the one hundred and fiftieth
anniversary of the Bergakademie in 1916.

The Institution of Mining Engineers held its meeting in
London on June 4 and 5. It was the twenty-fifth anniversary
of the federation of the seven constituent institutions, namely.
Manchester Geological and Mining Society, North of England
Institute of Mining and Mechanical Engineers, Midland In-
stitute of Mining, Civil and Mechanical Engineers, South
Staffordshire and Warwickshire Institute of Mining Engineers,
Midland Counties Institution of Engineers, North Stafford-
shire Institute of Mining and Mechanical Engineers, and the
Mining Institute of Scotland. The total membership is 3338.
The president. Sir William Garforth. who received the medal
of the Institution, stated that the Duke of Northumberland
wn; the president-el • ■■

.lnU 4 1'iH

MINIM. AND S( II N I II K I'KI SS

THE MARKET PLAC

11..U1/ Summary ../ Prion -t Hharei and I/, mi.

Stocks airad Bounds

• n iiiimimii stock • MD mrm

iSitn Krsn male >

June 39.

in iSPS

1 Oil

N;»Lmiv» Con
DnlUlrd.

I lvir..lfuin h«

lll.l

diluted.
Natomai I loaao]

1 1. Oamant *»»..
Santa crui OSmentfla.
Union oil

Bid
ftnnid»iii»iii nil

Aaocl«te<t i HI

I'u Pont, I'M -"

(1 Willi —

Pac 4>n. Bor«\. cm —

ntiiiiiii a* d —

Dotal on

ST".'KS
A»k

lll.l
1
100

m
m

Hid

Listed.

U'nl i on«i. I'M

Unlisted.

84 Genofoj Pntrolenm i

HI) Noble Klretrlr Blwl .. "c

■v?) Pao. Port- Cement so

l| Riverside Cement _, —

Santa Cms Cement —

Stand. Port. Cement... —
>K> Mi » STOCKS
iftv eourteas of San Pranolecc Stock Exchange.)
June 30.
Atlanta. * .U

Belcher J7

Belmont

fon. Virginia _ .1*

Klorence .40

UoldncM Con ..... 140

Goldllil.l "r., OS

Halifax IB

Jim Butler .97

Jumbo Kxlcntdon .31

ilaoNamata 01

Mexican .52

Midway .21

Ml/pah Extension £1

A.k

Auk
IIS)

I8|

Montana- 1 .-1 t"l 'ili

Nevada Hills

North Star

Ophlr

Pittsburg Silver Peak
Hound Mountain

sierra Nevada

Tonopah Extension ....

Tonopah Merger

Tonopah or Nevada ....

I'nlon

Victor

West End

Yellow Jacket

. ..I
.. .82

.27
.. .17
. .'i'.
... .35
.. .10
.. 2.50
.. .42
.. 7.00
.. .10
.. .38
.. .63
.. .35

CALIFORNIA STOCKS

(Latest Quotations.)
Bid. Ask.

Argonaut $::..".»

Brunswick Con.... 1.60

Bunker Hill 1.90

, Bureka 0.12

0.18

Bid

Kennedy

Mountain King

South Bureka ... - 10

Ask,
0.60

KIITER SHARKS — BOSTON

(B: >■ ■■■ 01 J. C Wilson, .Mills Building.)

July 2.

Bid \sk

Alluuez - 30] 10

Axis. Commercial 4) 4]

Butte 4 Superior 36) 17)

Calumet A Arizona 61J 8I|

calumet iV Heels 40."> 410

Copper Range 35) 36

East Butte 0] 1"

Franklin 4 4J

Granny 78) 7'.<)

Greene Cananea 30 30)

Isle Royale ItJfi 20

Mass copper 4) 4)

Mohawk 4:1) 45

Hid

Nevada Con $ IS)

North Butte i">l

Old Dominion 48

Osceola 7fi

(Julncy 56)

Shannon 5

Superior * Boston I]

Tamarack 34)

United Verde 80

U S. Smelting, com 33]

Ctah Con .'. 1»

Winona 3)

Wolverine 40

NEW YORK STOCK EXCHANGE

(By courtesy of J. C. Wilson. Mills Building.)
July 2.

Bid Ask

Amalgamated 8 891 89]

Anaconda 31) 31J

A. S. & R., com 62J 62]

Calif. Pet., com 18] 19]

Chlno 40| 401

Guggenheim Ex . 53 04

Inspiration 17) 1";

Mexican Pet., com 59] 81

Bid

Miami 8 21)

Nevada Con „ lag

Quicksilver, com...

Ray Con

Tenn. Copper

U. S. Steel, pfd

U.S. Steel.com ...
Utah copper

1
20j
33
109
61)
68)

25)

48)
78
58

Ask
22
14
o
21
33|

109)
61)
58!

M « * Ultl. 1 1 llll 1)1 III II IOSJI

i ii hi. ,n n Co, i...'

Jllll

it c Coppi
Flral Natli

in.)
IK

IKCI ..17

Iron Blossom
Kerr l^nke

Iji It..

\ - nll, >■

1'.
1".

Ask.

IVi

«4

la
14

3 •

Bid

Nlplsslm

oppi .

SImm. I I III .,! •'.,;

Tn Bullion

Tuolumni

United Cop.

Yukon Qold

>
S

i iimiii> in OTATIONs

bis, through n. urlesy of BJoIllsler. Lyon .^ 9

N'.-w York I
July 2.

Alaska m« iioan i

Alaska Treadwell 8

Alaska Inn., I :l

Arizona 1

Camp Bird

Cobalt Townsin- i

i 1 1 in o

Baperansa o

Granville

Kern River oilfields

:t
»

Mexican Kftul.

1
t

Paclilc iillrleld- .

RIoTlnto

18
18

•

. d.

•

r, o

10 II

i n

7 8

San Francisco Is not a primary market for the COI
metals except quicksilver. The prices quoted below therefore
represent sales of small lots and are not such as an ore pro-
ducer could expect to realize. Ore contracts usually call for
settlement on the basis of Eastern prices, less freight and
treatment charges. The prices quoted are In cents per pound,
except In the case of quicksilver, which Is quoted in dollars per
flask of 75 pounds.

LOCAL METAL PRICES

San Ft' is'.«,, .Inly 2.

Antimony 9 — :i \ c

Electrolytic copper 13 — 154c

PIS Lead 4.15— 5.10

Quicksilver (flask) $38.50

Tin 39 —4014c

.Spelter 84

Zinc dust, 100 kg. zinc-lined cases. 7 4 to 8c. per pound.

EASTERN METAL MARKET

(By wire from New York.)
MEW YORK. July 2. — As mentioned In the 'New York Metal
Market Review' of this issue, repeated statements as to the
depressed condition of the markets become monotonous, yet
metals remain practically at the same price. Copper Is firmer,
with more business doing, giving better tone. June exports
totaled 35,182 tons against 27.808 tons in June 1913. Granby's
May yield was 1.669,334 lb. Calumet & Hecla has paid a divi-
dend of $5, and Tennessee Copper 75c. per share. In the suit
of Sidney Norman, representing minority Interests of the Fed-
eral Mining & Smelting Co. v. the American Smelting & Re-
fining Co., the New York Supreme Court gave its decision
against the plaintiff. Lead and spelter are quiet. In St. Louis
these metals are weaker at 3.37 4 and 4.45c. respectively. Bar
silver in London Is steady at 264d. (62,26c).

SILVER

Below are given the average New York quotations In cents
per ounce, of fine silver.

Date.

June 25 56.37

" 2C, .',6.75

" 21 56.50

2S Sunday

" 29 56.62

.10 56.50

July 1 56.75

Average week ending

May 20 68.81

" 27 6T.12

June 8 68.62

" 10 56.4 R

" 17 58.66

" 21 56 "

July 1 56.:

:;4

MINING AND SCIENTIFIC PRESS

July 4. 1!M4

63 01

Fell 81.36

Hi 87.87

May 60.21

Monthly av
1914.

58 21

1913.

Julv 58.70

" ■

Sept. 60.53

60.88

Nov 58.76

Dec 57.73

COPPER

' -tlons on copper as published In this column represent
average wholesale transactions on the New York market and
refer to electrolytic copper. Lake copper commands normally
1-5 to l-4c. per lb. more. Prices are In cents per pound.

Date.

13. 3.".

-■

2* Sunday

!.: 26
13.211

Monthly

Average week ending
10 14.00

" 27 13. 9S

18.86

i» 13.::.

•• it 13. r,:,

" 21

July l

Men

Apr

May

16.54
. 1 1.98
. 1 1.72

. 16.42

Tun.- 11.71

191 I.
14.21
l l 16
11.11
14.19
13.97
13 BO

1913.
July 14.11

Auk.
Sept
Oct
Nov.
Dee.

Lead Is quoted In cents
pounds, \i u v.. ik delivery

I urn- 2.'.

i i: id

por pound

.15.42
. .16.23
. .16.31

..14.36

or dollars per hundred

inday

Jan.

Feb.

Apr

May

I on.

1 9 1 a

1.38

i 56

3.90
3.90
3.90

. , 8.90
Monthl;

191 I
1 1 1
1 03

S.86
3.90
8.90

Average week ending

May 2"

" 27 3.99

June 3 8.90

" 10 : '"■

" 17 3.9"

" 21

Julv 1 : 90

averages.

1913 I9it.

luly 4.3.'.

Auk.

Sept

Nov
I iec.

4.60

4.37
I IC
1 02

III l< KSII.VIOH
primary market for quicksilver Is Sun Francisco, Call-
being the largest producer. The price Is fixed In the
Open market, and. as quoted weekly In this column, is that at
which mod. rate quantities are sold. Buyers by the carload can
usually obtain a slight reduction, and those wanting but a Bask
or two must expect to pay a slightly higher price. Average
weekly and monthly quotations, in dollars per flask of 75 lb.,
ven below:

Week ending j June 1* 38.50

4 39.00 " 25

" 11 38.50 I July 2

Monthly averages.

1913. 1914.

.Ian 39.37 39.25

Feb 41.00 39.00

Mch, .10.20 39.00

Apr 41.00 38.90

May 40.25 39.00

June 11.1)0

1913.

Julv 41.011

Aug 40.50

Sept 39.70

Oct 39.37

Nov 39.411

Dec 40.00

19 11.

ZINC
Zinc 18 quoted as spelter, standard "Western brands, St.

delivery, in cents per pound.
Date

3 an.- L' r. 4.7

" 20 17

28 Sunday

l .

Average week > ndlng

1.95

.... 4.90

4.88

4.86

4.75

1913.

6. 88

6.13

Monthly
191 1.

.'..14
5 22
5ll2
1 . 9 v
4 91
1.84

averages

Julv

1913
5.11

Feu

5.51

Mch

Sept

Oct

. . 6.55

5.22

TIN

New York prices control in the American market for tin. since
tlie metal Is almost entirely imported. San Francisco quotations
average abotit 5c. per lb. higher. Below are given average
monthly Now York quotations. In cents per pound:

Monthly averages.

1913. 1914.

Jan 50.45 37.85

Feb 49.07 39.76

Mch 46.95 38.10

Apr 49.00 36.10

Mav 49.10 33.29

47. I" 30 72

1913.

Jul* 40.70

Aug 41.75

Sept 42.45

Oct 40.61

Nov 39.77

Bee 37.57

1914

Mew York Medal Review

Continued reports of the depressed state of tlie metal trade
become monotonous, but the truth permits no deviation to
the side of more cheerful reports ai present. One deduction
that augurs well for the future, however, is the unquestion-
able (act that stoOks of all sorts are in a depleted state, and
any revival of business, especially in the metal-working
trades, must •he fell without delay by the producers and
sellers of raw materials. The freight rate decision, now
expected dally, will help in this direction: but of greater
force yet is the fact that this great country is constantly
wearing out enormous quantities of finished products, and
these must be replaced. There is a limit to the patching
which can he done. Prices may have to be kept lower than
is desirable, in order to ward off too great an influx of
for. ign-made i.'nocls. bul the 1'nited States is going to keep
on making the bulk of what it uses, the production of which
must support its people. June brought lower prices in cop-
per, i in. spelter, and the products in which these materials
enter. It has been a quiet month all around. Lead has
been dull but steady. Tin is exceptionally low. and buying
U only from hand to mouth.' Of antimony there is an over-
sufficiency in stock. Aluminum is unchanged.

COPPER

If evidence were needed as to the present dullness and
low prices of the metals it might be supplied by an announce-
ment made on June 15 by the Ansonia Brass and Copper
Branch of the American Brass Co., wherein it was stated:
"In view of the decline in the prices of raw materials, we
beg in withdraw all prices on brass and bronze sheet, wire.
rods, brazed tubing, angles, and channels, and to submit
herewith a new schedule taking effect on all orders received
June 15, 1914, and after." The new schedule indicated that
sheet copper was reduced ' i c. to lflc. per lb. base, and that
there were reductions of %c. per lb. on sheet brass to 15V<,c.;
brass wire to 14 7 ic. and brass rods to 14 T ic. per lb. base.
Copper wire in carload lots, mill shipments, was at t lie
same lime reduced lo 15' ic per lb. base. Between June i
ami 85, 1 lie copper market declined about '_.c. per lb., and
the dullness was without relief. The quotation for electro-
lytic on June 1 was 14.12'.,c. cash New York, while on June
Li II was 13.62%C. cash New York, with a tendency toward
slill lower prices. Of course, there was some business dur-
ing this period, but it was mostly In small lots for prompt
shipment to meet current requirements. Consumption Is esti-
mated as being between 60 and 70% of normal. In the firsi
day or two of the month the offerings at substantial con-
cessions outnumbered the takers, with second hands, rather
than the producers, pressing for business. European buying
slackened up considerably, although exports against old
transactions kept up well, those for May having totaled
in. 771 tons. The June exports, up to the 27th. amounted to
29.3SS tons. The May report of the Copper Producers' Asso-
ciation, out June S, showing that stocks had increased 14,005,-
640 lb., was construed as unfavorable, and the electrolytic
market at once dropped hi,c. In this instance, and again
later in the month, the producers did not publicly announce
a reduction, but the price came down, nevertheless. Toward
the end of the month the market could only be described
as stagnant, buyers showing no interest, and there being
no pressure to sell on the part of either producers or second-
hands. Prime Lake shared the decline, though it did not
come down in proportion to electrolytic. On June 1 it was
quoted at 14.S7^c, while 24 days later it could have been
had at 14.1217.C. cash New York. Inferior grades of Lake
were to be had at 14e. and lower. Early in the month, prime
Lake was sold at 14.25c and other grades not regarded as
prime, at a shade under 1 1c.

Jul) 4 l'H 4

MINING \SD si || sin |, |. K | SS

III III.- I :

• r the Hoard ol Trade returns. In the (\n>l flv.-

gnparad wnii

\i.

SUIUI op lh. Ira. I market In June.

\. » Vi.ik niul ::■>".- Si LouK
• ii. I of ill.- 111..111I1 ihf imiiiu.. iru Ix

I, uii.i th*j . ..11. pl.t 1 ii. .1 ..( Hi.- ia. 1, i.r Bitten
lun at the and ol M»> ■ wag rtpo rt nd, a N.w

tn 11.11ni1i1.il maker taking 1 toni .■" ■ basis ol

•1. in. f. 1 Barlj in tun.- tiler* wan reports thai In-

1 Kiir..|..- im.l i.-Hiiii.-.i in sales, inn Hi., business

..mid noi he trai It) Hi.- iiiil.-i. then was little <>r

no di«i>oeiiii>ii la leaa, ami the market was in nil

BPBL.TER

Whiii the requaal for s|*-it.-r was quiet, then waa promise
ol a better demand (mm the sheet mills, which toward the
end of the month began to Fee] a disposition on the pari o(
their enatomen i» bnj sheets for the third quarter. Thin
was offset, however, by the prospect "( trouble between the
>h.^-i mills and their employee* over the wage scale tor nexl
-..-.ir a conference which was held al Atlantic City illil no)
bring an* agreement between them, and the situation was
left with the possibility of a shut-down of about 22' : of the
sheet mill capacity of the country unless Further conference
-ml. Until mill- the last of the month, quotations
unchanged al 5.10c N.w fork ami 4.95c. St. Louis,
ih.'D five j.oinis were lost, making the price 5.06c New York

and 4.1 si. I. .mis. Ol course, the metal was adversely

affected by the sla.-k business of the brass mills.

TIN

The market ranged between 30 ami 81c. from June 1 to
June 27, witb buying llghl at all times. Nearly all of
Bucta activity as prevailed was in comparatively small lots
for prompt or very early delivery, an evidence of the de-
pleted stat.* 01 consumers' stocks. Deliveries continued good.
principally because ol the large consumption of Hie tin-plate
mills. In May. deliveries totaled 3800 tons. On June 1'. the
London price dropped £5, causing a break lure of over '_.e..
and about ISO tons changed hands as a r.-sull. The London
market at this time was in a more or less demoralized state,
because of a lack of support which left it at the mercy of the
liears. In New York, conditions were not pleasing either, as
some of the metal taken June 1 by consumers under con-
tract, had cost them -inc.. while the quotation on that day
was 31.25c, and the next day it dropped to 30.45c It was
noted that dealers lost no time in making deliveries on such
contracts. Abroad, the unsatisfactory condition was
attributed to the world supply statistics, the shipments from
the Straits having been 788 tons larger in .May than those
of the same month last year. In five months of this year
the Straits shipments were 1774 tons greater than those of
the same months in 1913. The middle of June brought no
betterment, either in the number or character of sales, anil
a serious development at this time was a failure to take cer-
tain deliveries against an old contract. On June 16 there
was a sale, under the rule, on the floor of the New York
Metal Exchange of 25 tons, ex-steamer Atholl, which brought
29.50c, the lowest price in years. Spot supplies were closely
concentrated. As the month drew near its close, consumers
seemed to have but little faith in the market, were showing
no interest in futures, and all sides seemed to be awaiting
developments. The arrivals in June, up to the 27th,
totaled 3200 tons, and there was afloat 2308 tons. In five
months of this year deliveries decreased 450 tons as com-
pared with the same time last year. The total visible world
supply June 1, was 17,862 tons, as compared with 13.710

'""* ' idon .1.

\\ 1 MONT

1 hi

in bond, lune I, wen reporti 1, . ..

lb. on Hi.- mm .

■mounts cannot 1 mpared, bo on that

mpendlng ami nil the
wai carried In bond, wbereaa Don .. graai si
stored In private wanl With but sikhi changsa the

1,. lb, wing prices ruled th e.h Hi.- 1 ill Map

to 7c; Cookaon'a, 7.12 1 .. to 7 20c : ,i,.i other grades
r pound

Cmunremft Prices for

.«»

(Corrected monthly by Standard
ah prluea are f.o.b. Ban Irranolaoo except where otherwise
1 and are subject 10 obange without 1
lie Mining Peraet Oranlte Mining Per set,

dlee, cents. Candles. cents

Ss-M oz.-IOs 8»; C«-lloz-20»

•s-.ltOS.-S0s 9 6s-l«O7..-40s 10

IS-14 O1.-40S 9'/i 6s-16o-t.-20»

Cxtra hard lc. per set higher tnan the above.
The following prices are for oils (Cnlol) In w.....i barrels:
(2-5 gal.) 8c per gallon bin!

Per gal.. Per gal.,

cents. c.-nts.

Compressor oil 40 Light gas engine oil ill

Amber gas engine oil 40 Red compressor oil 2fi

Castor machine oil 20 lied engine oil 17

Dynamo and motor oil.... 21 Turbine oil 35

Knglne oil 24 Turbine oil. heavy

Gns engine oil 26 Diesel engine oil 40

Heavy gas engine oil 45 Cylinder oil 37

Heavy red engine oil 19 High-pressure cylinder oil, 50

Heavy red Journal oil 21 Low-pressure cylinder oil. 37

Ice machine oil 28 Valve oil 50

The following prices are for oils In Iron barrels, cases (2-5
gal.) 7c. per gallon higher, e> :ept on Eocene, which Is 8c, per
gallon higher. »

Per gal.. Per gal.,

cents. cents

Pearl oil 9 R.-.l Crown gasoline 14%

Headlight oil 10 Engine distillate 7

Eocene oil 11 Aroturps 23

Per bbl.
Star fuel oil, r.o.b. Richmond Refinery J1.00

Per ton.

Petrolastl ment X 112.00

Petrolastlc cement XX 11.00

Asphaltum 85.50 to 12.00

Cwreinift Prices for Ores andl Minerals

(Corrected monthly by Atkins. Kroll & Co.)

The prices are approximate, subject to fluctuation, and to
variation according to quantity, quality, and delivery required.

They are quoted, except as noted, t.o.b. San Francisco, liuylng
prlceB marked •.

.Mm. Max.

Antimony ore. 50ft, per ton °$is.0n $20.00

Arsenic, white, refined, per lb 0.08 0.04

Arsenic, red, refined, per lb 0.08 0.OS v.

Asbestos, chrysotlle '.00.00 350.00

Asbestos, amphibole 5.00 10. on

Asphaltum, refined, per ton 11.50 20. on

Barium chloride, commercial, per ton 40.00 18.60

Barium sulphate (barytes), prepared, per ton. 20.00 30.00

Bismuth ore, 16%, per ton "250.00 upward

China clay, English, levigated, per ton 15.00 20.00

Chrome ore, according to quality, per ton 10.00 12.50

Cobalt metal, refined, f. o. b. Ixmdon, per lh.. 2.50 ....

Coke, foundry, per 2240 lb 12.00 15.00

Diamonds (according to size and quality):

Borts, per carat 2.00 15.00

Carbons, per carat 55.00 SO. 00

Feldspar, per ton 5.00 25.00

I-'irebrlck:

Silica, per M 50.09 55.00

3fi

MINING AND SCIENTIFIC PRESS

July -t 1914

Snowball, per M t 15.00

Film pebbles Mr tube-mills, Danlati, pel

II) 21.50 22.50

Fluorspar, per ton 10.00

Pollen earth, according to quality, per ton... 20.00

• llftonltc. per t-<n :S5.00 10.00

ttaapblte:

Amorpl s, i"' lb 0.01 '~

I'rj-scillin.-, per lb 0.04 0.19

Gypaum, per ton 7.r,s 10.00

Infusorial .-url'i. per ton 10.00 1

Iridium 5S.O0 ....

MriKne.M B.OO 7.50

IfagaeaUe, dead calcined, per tori 20.00

Siangan per ion 10.00

Manganese, prepared, according to quality.

Pit Ion 30.00 70.00

Mica, according tr, size and quality, pei lb . 0.05 1.00

Molybdenite. 953 M.,s.. per ton 750.00 1000.00

Monaatte sand 1" ton 150.00 200.00

Nickel metal, refined, per lb 0.46 0.60

Ocbre, extra strength, levigated, per 100 lb... 1.6O 2.00

Oamliidlum, per oz 25.00 ....

Platinum, native, os 30.00 45.00

Sllox llnlni; for tube-mills, per 2210 lb 35.00 16.00

Sulphur, crude, per ton 15.00

Talc, preparei - to quality, per ton.. 20.00 '

Tin ore, 60%, per ton 125.00 1

Tungst 100.00 125.00

Uranium or.-. 10', inin 25.00 per unit

Vanadium ore, 1'', v.... per ton 150.00 180.00

Wolframite (see tungsten ore 1.

Zinc ore. 50' ton "15.00 20.00

eiraancalls

(Corrected monthly by Braun-Knecht-Helroann 1

or ordinary quantities In packa>;
specified, For round lots lower prices may be expected, while
In smaller quantll are ordinarily charged.

f.o.b. San Francisco and subject to fluctuation.
Other conditions govern Mexican and foreign business.

.Max.

\. Id sulphuric, i'I 66 . drums, per 100 lb.. I 0.80 t 1.10

Acid, sulphuric com'L 66°, oarboy, per 100 lb 1.75

Acid, sulphuric, C, P., B-lb. bottle, bbL, per lb. 6.13 6.16

ulphurlc, '■ P., bulk, 1 lb.... o.osvi

Acid, muriatic, 1. carboy, per 100 lb 1 60 1.06

■ 1 1 muriatic, C. P., 6-lb. bottle. bbL, per lb... " 1 ■'• 0.S6

Acid, muriatic, C. P., bulk, carboy, per lb 11.1014

Acid, nitric, com'l, carboy, per 100 lb 5.50

Add, nitric C. P.. 7-lb. bottle, bbL, per lb.... 0.16

Acid, nitric, C. P., bulk, ci rbo per lb" 0.12VS 6.16

Argols, ground, bbL, per li> 6.10 0.20

Borax, eryst and cone, bags, per 100 lb

Borax, eryst. and cone., baps, per 100 lb ! 1.85

powdered, bbL, per 100 lb 1.50

Borax glass, gd. 30 aes, tin lined, per

lb lo.r.o 18 50

lb, 60 i" 80 mesh, bbL, per 100 11, 6.50 6.50

Bromine, 1-lb. bottle, per lb 0.65 6.65

Clay, domestic Are, sack, per 100 lb 1.50 2.00

Cyanide, 98 to 100%, 100-lb, case, per lb 0.18 0.22

Cyanldi 9 ti 100%, 200-lb. case, peril, 0.18 0.22

Cyanide, 129%, 100-lb. case, per lb 0.22 0.26 M

Cyanide, 129%, 200-lb. ease, per lb 6.22 0.26

Lead acetate, brown broken, oasks, per 100 lb. 9.00 10.60

Lead acetate, white broken, casks, per 100 lb.. 10.50 10.76

Lead acetate, brown broken, .asks, per 1"" lb. 9.60 16.50

acetate white, crystals per 100 lb 12. 50 18.26

C. P., test., man., per 100 lb 18.00 16.00

Lead, C. P., sheet, per 100 lb 15.00 I 8.00

Litharge, C. P., silver free, per 100 lb 11.50

Litharge, com'l. per 106 lb B.00 9.50

Manganese ox., blk.. dom. In bags, per ton.... 20.00 25.00
Manganese ox., blk., Caucasian, In casks, per

ton (S5ci MnCV- »i c^ Fe) .•;.-„„ .-,n.00

Nitre, double refd, small eryst., bbl., per 106 lb, 7.00 8.00

Nitre, double refd. granular, bbl., per 100 lb.. 6.50 7.60

Nitre, double refd, powdered, bbl., per 100 lb. 7.26 B.00

Potassium bicarbonate, eryst.. per 100 lb 12.00 15.60

Potassium carbonate, calcined, per 1"" lb 7.60 9.00

Potassium permanganate, drum, per lb 0.109S 0.13

Silica, powdered, bags, per lb 0.08 0.06

"Extra charge for packing nitric acid for shipment to con-
form to regulations.

Soda, carbonate (nshi, bbL, per 100 R>

Soda, bicarbonate, 1,1,1., per ion lb....

Soda, caustic, ground. 98 r r bbl . p.r 100 lb.
Soda, caustic, solid, !'S',. drums, per 100 lb.

Zinc shavings, 850 line, bbl.. per 100 lb

Zinc sheet. No. 9 — 18 by 81. drum, per 106 lb

Mln.
1.45

Max

1 7."

.',.".'1

2.-..I
.: 2".
B. 7 6
II 60

1U.2II

■ ■ i,i,

Peftffoleiuunni ProcdlyUicftnomi ©if the

After nuiUrhe. a complete investigation of litis industry,
the U. S. Geological Survey has compiled the Following table.
The totals are oDly 2.5% different from preliminary estimates
published by the Survey eight days after the close of the
year 1913. The Survey is the only statistical agency which
prepares a statement of the value of the crude oil at the
wells. The principal feature was the gain in value over
1912, namely. (72,908,141, although the output was ouly 26,511.-
186 bbl. greater. Every state except Colorado showed an
im rear- in the value of the oil.
1912.
Quantity, Av. price

State or region. barrels, perbbl.
Alaska

$0,454

Colorado

206,052

0.793

28,601,308

0.851

Indiana

H70.009

0.918

Kansas

1.592.796

Kentucky

484,368

0.877

Louisiana

. H.263,439

0.758

(')

New Mexico .'...,

874,128

1.604

Ohio:

Southeast!

5,013,110

1.631

Lima

3,955,897

0.988

Total Ohio .. .

. S.969,007

$1,347

Oklahoma

. 51,427,071

0.674

Pennsylvania

7,837,948

1.644

Texas:

Northern

. 5,275,629

".7711

Coastal

U.459.52S

0.934

Total Texas.

. 11,735,057

$0,754

Weal Virginia . .

. 12,128,962

1.643

Wyoming

. 1,572,306

0.507

Other

1913.

Quantity. Av. price

barrels. perbbl.

(")
97,764,525
188,799
2::.S93,S99
956,096
2,375,029
524,568
12,498,828
Ci
(')
i'I
902,211

$0,467
0.947
1.296
1.337

0.947
1.288
0.981

.♦i'I

1.9114.12:,

::. si 7.114::

2.41:::

1.391

8.781 ,46s $1,997

68,579,384 0.937

7, 963, 282 2.487

9,184.252

0.994

5,825.226

0.953

I5.uil9.47s

$0,978

11. 567.299

2.492

2,406.522

0.493

■34,843

Total U. S. ...222,935,044 $0,737 248,446,230 $0,954

stMMAKY.

Appalachian 26,338,516 $1,626 26,921,785 $2.45S

Lima and Indiana. 4,925,906 0.932 4.773.13S 1.380

Illinois 2S.601.308 0.851 23,893,899 1.296

Mld-Contlnenl .... 65,473,345 0.692 84.920,225 0.951

Gulf 8.545,018 0.742 8,542.494 0.936

California 87,272,593 0.464 97,764,525 0.467

Colo, and Wyo 1.77S.358 0.561 2,595,321 0.525

Other "34,843 1.930

Total 222.935.044 $0,737 24S.446.23n $0,954

'Included in 'Other.'
"Estimated.

'California production in 1913 subject to revision.
'Included in Lima. Ohio.
Includes Michigan.

"Includes Alaska. Michigan. Missouri, and New Mexico.
The total values of the respective years was $164,213,247 and
$237.121,3S8.

.li.U I. I'M!

Ml\|\t. II Mil It I'KI SS

COMPANY REPORTS

MBIAN minim; * EXPLORATION COMPANY, LTD.
Thr report "i tiu» Company, operating at Marmato, Colom-
bia, drala with the > . .1 r ended March 31. 1914 In the Colom

Maoo mill ot H Win Ctu Pwoa ol U stumps, ami Innerno
ol 10 iuiuim mow .". owlni it. a ibortag* of water, only

25.494 Inn- ..( ore was treated, yielding $7 par Inn In Kold.

A plain 1- Unit erected iu ir.nl tin- »aml. which tvt

I tun I'll.- value of gold recovered was J _• 4 • t an In-

I »Vt r 1911 ' ■ In Id.- different mine*

11nai.1l at I :i;.:'.ii tons a\. iragtag |1m.;,i> par Ion. Good
progress has 1m-.ii tna.l.- with the tow mill at La Talma It

consist* of rock-eruahers, 10 stamps, two Dorr classifiers, three

tnix- iniiN. two Dorr thickeners, six Pateraon agitators, ami

1" Dahne hiter-prcescs. Labor and trans|iort arrangements
continued satisfactory.

ROBIN80N GOLD MINING COMPANY, LTD.

During January 01 the current year, it waa proposed i"
amalgamate this Kraal Kami company with the Crown Mines,
Ltd.. lint shareholders objected to this being done The re-
port for the >.-ar ended December SI, 1913, contains tin 1..1
lowing information Owing to tin- gradual reduction in the

Dumber of stone Faces capable of supplying large quantities
of the higher-grade ore, the Increased tonnage waa made up
from development ore From surface dumps, anil .Main •reef.
This resulted in a fall In yield of $1.90 per ton milled, and a
decrease In working costs of 88c., with a reduction in working
profit of $390,000. A small amount of development was don,
on the lowest levels, .lis. losing good ore in each reef. The
development of the mine is now practically completed. Ore
PS are as follows: Leader. 349.000 tons of $10.20 ore
ov.i a stuping width ol 82 in.: South reef. 189,200 tons of
♦ ll.l ore over 65 in.: and recoverable from old workings, etc.,
469400 tons. There is also estimated to be in the Main reef.
772,900 tons of $4..:" ore. Sand-filling of slopes was done for
about nine months.

Kesults were as follows:

1913. 1912.

Ore mined, tons 700.149 673,058

Ore from surface dumps, tons 26.734

Sorting done, per ,-.-ni s.l i:;.s

Ore milled, tons 668,900 577,300

Yield per ton $ 8.5S $ 10.48

Total yield 5.750,000 5,900,000

Working nroflt 3,500,000 3.940, 0011

Working cost per Ion 3.38 3.70

Dividends paid 2.010.000 2.970.000

Transvaal Government tax on profits 312.000

Balance unappropriated $2,490,000

BROKEN HILL PROPRIETARY BLOCK 10 COMPANY, LTD.
The report of this New South Wales Company covers the
ball-year ended March 31. 1914. Development totaled 1112 ft.
At the beginning of the term the management adopted the
policy of confining all development work to the upper levels,
from the 015 ft. level upward. No work was done in the
lower levels, except making necessary repairs, and providing
an emergency escape from the 1215-ft. level into the neighbor-
ing Proprietary mine. The main drift at 615 ft. followed the
ore for about 200 ft. southwest, and it looked as if it would
connect with the western orebody discovered in the Central
mine. But it turned almost due east, with the result that at
"11 It. the ore passed over the boundary of the Central mine
at a point within a few feet of the Block 10 old main-lode
workings. Ore reserves are about 22S.900 tons.

II » mill did good »ork Hi ttv.it)

yielding 6752 ton* ,,t lead ooBoontrata, M*t«i recovi

and «ll>, r ti.tr i A total ol

' bj products, tump tailing, tllmi and mid

• 1 the total revenue being Hi and Del profll t

\ dividend ol tin was paid, and the surpi

duced 11. -to ti-.. to $440,004 I ■ llowa Mine

ib-vHopin, in attraction Jim. milling, treatment,

and Iran port, Jilt an. I gl 1 ' H p. r ton

ST JOHN DHL UKY MINING COMPANY, LTD,
The eight] third annual r.-port of tin Company, operating
in iiia/ii. coven tb.- rear ended Februarj 18, 1914, The

superintendent, 1;. orgs Chalmers 1. nti d as follows ..a the

woii, .ion,- Tin- average number ol native men and
employed wi and ol officers and rcngll -mm

there were 1?" Early in 1912. labor troubli I ind the

climax waa reached in Beptembei and Oi 913. Efforts

at recruiting labor in Brazil and other countries wi re nol sue
easeful. While tin- government was prosperous, ami pal

tor work being don.-, in. -n kepi awsj rrom tb.- m
but when 1 tii.b. -r ami coffee prospects were pom, it retrenched,
ami men returned to tb,- mines. A rise in wage- was
necessary and increased tin- costs considerably. Among the

attempts to help tin- labor difficulty was the importation of

107 Japanese. They arrived on August 30, 1913. They were

a sturdy lot and well disciplined, and great consideration was
shown them. But only 40". of tin-in would go underground,
in spin- oi patience of the mine staff, in October, they Btarted

to il. sen. and at the end of the Company's year the 107 Japa-
nese had gone. The experiment was therefore a failure. The
mini- is a fairly hot one, and this is a reason for nun DOl
liking to work underground. There were five fatal accidents
in the mine, mostly due to the mens' own carelessness. The
general health of Mono wiho was good. The medical
treated a total of 24.755 patients, most of whom consulted on
trivial eases. Tuberculosis is on the Increase here and
throughout Brazil.

The Mono Velho and Raposos tramway started operation
on April 5, and handled 14,937 tons of stores, ores, and 32,725
passengers. It is showing a small profit, but Is generally a
great convenience. Cost of transport from Honorio Blcalho
used to be $3.84, but is now reduced to $1.70 per ton.

At the mine, a total of 2588 ft. of work was done. On- re-
serves are estimated as 887,400 tons, compared witli Si::.Tss
tons in the previous term, and are estimated to 122 ft. n
below last year. No. 18 level Is 5226 ft. below the surface 1902
ft. below the adit, and 245S ft. below sea-level on the incline.
Electric locomotives in the adit worked well, and it is pro-
posed to substitute these for mules in the lower levels. The
Sirocco Ian is now driven by a 300-hp. motor, increasing the
volume of air delivered 22C£. Another fan will be installed
at tin- top of 'G' shaft. Stope-filling for the year amounted
m 1 :;:,. 37:: tons.

The stamp-mill crushed 174.000 tons of ore yielding 97,208
oz. gold, worth £411,508. The recovery by all processes was
93.13 per cent.

Costs were as follows: State and Federal government
duties and transport. 60c.: development, 41c.| working charges
in Brazil. $7.30: and London expenses, 10c, a total of $8.41 per
ton. The profit was £115,349. Dividends amounting to 24c.
per share, or in',, were paid. The balance carried forward
i- E7196. Investments are worth £96.472.

Owing to the shortage of labor, development and sampling
of the extensive iron-ore deposits was suspended. Foreign
capital has secured all of the other first-class iron land lor a
radius of many miles from the mine, and the genera] tendency
of these owners is 'watchful waiting.'

Brazilian exchange for the Company's drafts averaged
K.itssd. (32.176c.) per milreis. Mine tempera tit res will be
discussed in another issue of this journal.

MINING AND SCIENTIFIC PRESS

-lulv 4. l!tH

The F'-iiowim. Data, Covebikc mh Teas L913, is krom hik
United Si v res Geoi oqii n Si a

COAL MINING IN MISSOURI

roductlon in Missouri in 1913 was 4 . :: 1 s . 1 ^ Ti short tons.

valued at $7,468,808, a decrease compared with 1912 of 20,731

ion- in quantity and of $165,656 in value. With the exception

2, however, the output in 1913 was the largest in the

history ol the state. The number of fatal accidents was re-

one-half of the fatalities of the preceding year,

or from 20 to In. according to reports to the Bureau of Mines.

COAI. MINING IN INDIANA
production in Indiana in 1913 was 17,166,671 short
tons, valued at $19,001,881, according to Edward \V. Parker,
Although this was an increase of 1,879,953 short tons, or
12.39! over 1912, it fell short of the record output of 1910 by
more than 1,200,000, tons and was withal far from satisfactory
to the producers. Floods and a drought interfered with regu-
lar work. The average value per ton showed a decline from
$1.14 In 1912 to $1.11 In 1913. The total value of the coal
mined increased from $17,480,546 to $19,001,881, a gain of
$1.521. 335, or B.7%, compared with the increase of 12.39i In
quantity.

In -pile ol the adverse conditions which prevailed in 1913,
labor was in better supply and the number of working days
made by the employees was greater than in 1912, The total
number of employees in the coal mines of Indiana increased
from 21,651 in 1 !> 1 L' to 22.235 in 1913. and the average work-
ing time from ls2 to 190 days. The average annual pro-
duction iter man in rom TOO to 772 tons, and the aver-
age daily production by each man from 3.88 to 4.0fi tons. The
as due in part to the larger proportion
of the product being mined by the use <>1 machines, the in-
in that Item contributing 669! of the total increase, or
7 ions. The production of machine-mined coal in
amounted to 9,634,146 short tons, or 569! of the total,
red with 54.79! In 1912. The number of fatal accidents
reported to the Bureau of Mines for 1913 was 66, compared

with 40 in

METAL PRODUCTION OF TilK EASTERN STATES
The following table, compiled by H. D. McCaskey. shows the
output from '.in mines, of which 48 were gold-placer, 9 zinc,

tend 7 per properties. Of the gold mines. 27 are in Georgia.

17 in North Carolina, and 4 in South Carolina. Nearly all
i be copper came from the Ducktown district of eastern
Tie- zinc mines at Franklin Furnace. New Jersey,
< i he bulk of that metal :

Ores

mined.

Short

torts.

na 4.068

i 2.614

New Hampshire 400

New Jersey 490,434

North Carolina 11,274

Pennsylvania and Vermont 239.178

South Carolina 1,010

Tennessee 823.645

Virginia '. 30.916

Total. 1913 1.603,539

Total, 1912 1,361,734

PUMICE
Pumice produced in the United States In 1913 amounted to
24,563 short tons, valued at $55,408, a <! 2583 tons in

quantity and of $31,279 In value compared with 1912. The
material came from six states, namely, California, Kansas.
Nebraska. Idaho, South Dakota, and Utah,

OILSTONE

The prodiictjpn of oilstones. Including hones and whet-
stones, and scythe-atones In the United States in 1918 amount-
ed to $207,352, a decrease of $24,866 compared with 1912, ac-
cording to Frank .1. Katz of the r. S. Geological Survey. Oil-
stones were produced In Arkansas, Indiana. Ohio, and Ken-
tucky, especially in Arkansas, which has led in the production
for many years. New Hampshire led in the production of
Bcythestones, but Vermont, Ohio, and Michigan also con-
tributed Important quotas.

PORTLAND CEMENT PRODUCTION

IHiiing 1913, according to final figures collected by Ernest

F. Bnrchard. the output was 92,097,131 bbl., an increase of

11.72', compared with 1912. Shipments by states were as fol-
lows:

Ship- Average

ping Quantity, price per

State. plants. barrels. Value. barrel.

Pennsylvania 23 28,060,495 $24,268,800 $0,866

Indiana 5 10,219,492 in.21S.S07 1.000

California 7 6.01S.262 8,896,734 1.478

New York 8 .-.130.334 4,801,607 0.985

Illinois 5 4.731..-4H 4.7-4..;'.'ii 1.011

Missouri 5 4,486.820 4,556.822 1.016

N.w Jersey 3 (.255,016 3,638,755 o.sr,:,

Michigan 11 1.081,961 4.22s,s7:i 1.1130

Iowa 3 3.455.800 3.072.v7>; 1.150

Kansas 10 3. 291. sis 3,286,861 0.998

Texas 4 2.108.737 2,663,063 1.263

Washington 5 2.02:',. 172 2,853,260 1.410

Ohio 5 1.631.055 1.721.423 1.056

Utah 3 950,469 1.233.421 1.298

Other states* 10 s.237.os7 7.9sn.911

Total 113 88,689,377 $89,106,975 $1,005

•Alabama. Arizona. Colorado. Georgia. Kentucky. Maryland,

Montana. Oklahoma. Tennessee. Virginia, and West Virginia.
In 1912 there were 117 shipping plants, moving 85,012,556

bbl. valued at $69,109,800, an average of 81.3c. per barrel. In

13 states, in the above table, there was an Increase in the

price of the product.

Total recovery of useful fuel from waste heaps and culm
banks, al coal mines in the Tinted States, has amounted to
19,329,376 tons since 1890.

Total

Gold.

Silver.

I'm''

Copper.

Lead.

Zillr.

value.

Value.

Pounds.

p. .a nda.

Pounds.

$ 11.094
15,108

117

$ 11,165

15,153

30,000

1,680

168.244.000

9.421.664

126,448

1,812

20.400

128.685

105

517.692

80.309

4.881

4.005

7.595

108,105

19,390,750

1.632.000

11.166,000

3. 703. 752

604

960

56,287

5.438.000

386.244

$165,733

111.214

19.964.729

1.632.000

184.S98.400

$13,753,557

$222,496

96.523

19,265,945

561.020

144,699,863

$13,470,276

1'iU

MINING WD S< II Mil II I'KI SS

BOOK REVIEWS

iw-HIII
Hook I N Indai For nalv by th«

if mix t

um 'n the preparation ol UUi i*>«k u stated by the

author • i i lif demand* of the copper nictallur

! Mi ii. •ini. 111 hai succeeded

In complllii "lunmt of Information on the subject

■ I .in.i chemical facta

■ and compounds which are of metallur

details .tf tilt- older smelter practloe which

Iher with the modern method* and recent

■ metallurgy with examples taken from

the modern American plants are presented In detail. The

>iiii a discussion i>i the properl ipar, its

gradi s, impurities and their effects. The Industrial alloys

i with eutectic curves, and the compounds and

■ brlefl) treated The author devotee 3in

■i the smelting of copper in which space the numerous

■ if the subject are dealt with, special attention being

■■> the dynamics of copper Bmeltlng. The rams are

■ with detailed drawings "i Bmelter equipment.

The leaching of low-grade and flnelj dessemlnated copper

ores, which has ni recent years come to lie such an important

forms an Important part of
the work. A general discussion of the chemistry of the sul>
followed by descriptions of the various leaching pro-
wlth apparatus for use in this branch of metallurgy.
The electrolysis of ore, matte, speise. and metallic copper
in general i discussed. The current, ceils, and equlpmenl
for the electrolytic refining of copper form the subject of
this department of the hook. The bibliography presented is
an Important asset as the numerous references which are
given as footnotes cover the literature on the subject and
are valuable as reference for one caring to go into further
refinements of the subject. The work is a valuable addition
to the literal nre on copper metallurgy and is of particular
Interesi as a text or reference work.

Cuemu ii. Gebmah. By Francis C. Phillips. The Chemical
Publish Pennsylvania. P. 211. Notes, vocabu-

lary. For sale by the Mining ««</ Scientific Press, San Fran-
cisco. California. Price S2.

Practical!;, every engineer who. by necessity or inclination.
casion to make a careful survey of the literature on
any subject rinds it necessary to read papers appearing in
German and French, since one or the other of those two lan-
guages is used not only by their respective nations, but also
by scientific workers in almost every other European coun-
try. In the case of French, this involves little difficulty, since
technical French is lucid and anyone who can read, even
with some difficulty, an ordinary French novel, finds less
labor required to comprehend a scientific paper. German, on
the other hand, presents the reverse characteristics, and an
engineer who successfully passed the examination in German
for extrance to his technical school and for whom the Amer-
ican rathskeller or travel in Germany has no terrors, not
Infrequently gives up in despair when confronted with the
necessity of reading an article written in technical German.
Many of the words used in such an article are not to be
found in any ordinary dictionary, or if they appear their
technical meanings do not. The German method of naming
compounds is also puzzling: thus Zweifachschwefeleisen
(FeS.) and Zyanwasserstoffsaure (hydrocyanic acid) are not
a* once recognizable. Superimposed on these difficulties Is
the controversy raging in Germany between the advocates of

simplified ipelilm and

Mr Phillips, Wl ■ mlmrv

in Hi.- Unlvei Jtj ..i Pittsburgh, ban on ■■ aid of the

chin, t. ai student blm th* rule,, which govern

chemical German, an • ■ chemical terms

an «cii as ordloarj words used in chsm and a series

ided extracts from chemical literature, suable! him to
find his «;n through chemical llteraton and to equip himself

in proce.,1 unaided, A similar guide to ami metal

lurglcal German is greatly to t> aul pending Its

appearance tmerlcan students win be great!] aided by this

volume, for whlcl^ Mr. Phillips deserves and will doubtless

the thanks "f every plodding research student.

On. Lease — Ricuir ok Action
Where an oil lease by Its terms leased the land therein
described and not merely the right to extract oil therefrom,
the lessee could maintain an action thereon prior to the dis-
covery of oil.

Kline v. Guaranty Oil Co. (California), 140 Pacific, 1. March
25, 1014.

Cobpobation Liable fob Violation of Stati n

Those In charge of a mine for a corporation must see that
the statute against mining within five feet of a division line
Is observed, otherwise the corporation is Itself liable for the
penalty. The neglect, mistake, or disobedience of its serv-
ants in this particular will not excuse It.

Gawthrop I). Fairmont Coal Co. (West Virginia!, SI South-
eastern. r.fiO. April 7, 1914.

Coal Lease — Implied Covenants
A lease of "all coal and mineral rights and privileges what-
soever, contained on, in and beneath the surface", of certain
described land, for a period of ninety-nine years upon a con-
sideration of royalties, but with no covenants for diligent
working by the lessee, was held to be a lease upon an Im-
plied covenant for reasonable diligence on the part of the
lessee, vesting no estate in the coal until actually mined.
A lapse of twenty-five years before commencing operations
was held to warrant a forfeiture.
Chandler v. French (West Virginia), SI Southeastern. K25.
May 21, 1914.

Assignment of Oil Lease — Held Valid
An oil lease was granted upon condition that a well should
be commenced within a year, or in lieu thereof $160 paid
to the lessor. A year elapsed without compliance by the lessee
with either of these conditions. A new lease was then made
by the lessor to third parties, who assigned it to the defend-
ant for a consideration. Before all the consideration was
paid, the original lessee paid $160 to the lessor. The assignee
thereupon refused to pay the balance of the consideration
for the assignment of the new lease, alleging that the old
lease had been continued in force by the acceptance of the
delayed payment and that there was a breach of implied
warranty. Held, that the assignor of the new lease was
entitled to recover the balance of his consideration, as the
$160 had not been paid within the year and could not vali-
date the old lease after the new one became effective.

Eastern Oil Co. v. Holcomb (Oklahoma I, 212 Federal, 126.
February 23, 1914.

MINING AND SCIENTIFIC PRESS

July 4. liiH

The Use of Link-Belts

The detachable link-belt was invented by William D. Ewart
in 1873, and since that time the original link-belt has been
manufactured at the Ewart and Belmont works of the Link-
Belt Company at Indianapolis. Link-belts are adapted to such
a wide variety of uses and their construction is so well un-
derstood that the engineer and millman, who has occasion
to use them, thinks little as to their technology and correct
application. The two qualities most desired in chain drives
are, of course, immunity from break-downs and durability,
both of which call be secured by using the proper belt for
the working load. The magnitude of this load depends upon
the speed of the chain and the character of the work which
the chain is to perform.

In transmitting power the engagement of each chain link
with the tooth of the sprocket wheel is attended by a cer-
tain degree of shock, and as this is multipled and intensified
as the speed is increased, the working load of the chain
should be reduced in a compensating ratio.

As the result of numerous and carefully conducted series
of tests, the Link-Belt Co. recommends that the working
load of the chain be determined as follows:

For a speed of 200 ft. per minute and under, divide aver-
age ultimate strength by 6.

For a speed of 300 ft. per minute and under, divide aver-
age ultimate strength by 8.

For a speed of too ft. per minute and under, divide aver-
age ultimate strength by 10.

For a speed of 5<i0 ft. per minute and under, divide aver-
age ultimate strength by 12.

For a speed of 600 ft. per minute and under, divide aver-
age ultimate strength by 16.

For a speed of 700 ft. per minute and tinder, divide aver-
age ultimate strength by 20.

If the load to be transmitted is irregular or subject to
shock, or if the chain is used in an elevator or conveyor
handling gritty or coarse material, a still further reduction
of the working load must be made. The ultimate strength
of the chains is obtained from the manufacturers' catalogs.
The horse-power transmitted may be ascertained by multi-
plying the number of feet the chain travels per minute by
the working load and dividing the result by 33,000.

Manganese steel has been adapted for link-belts where spe-
cial toughness and hardness is required. By special proc-
esses, mixtures, and heat treatments, it has become possible
to manufacture smooth and uniform chain links of the vari-
ous types used for severe work. The characteristics of the
manganese steel used for link belts are its extreme tough-
ness, it not being brittle, but so ductile and malleable that
when overstrained it will stretch and twist out of shape in-
stead of giving way suddenly.

In the operation of link-belts it is essential that the
sprocket wheels are carefully fitted to the chain. It is true
that cnains will frequently 'run' on sprocket wheels which
do not fit them, but to insure durability and maximum service
of both chain and wheel, they must fit. A sprocket wheel
with hardened face that does not fit the chain may have a
long life, but at the expense of* the chain. It is necessary,
therefore, that when sprocket wheels are purchased it be
insisted upon that they fit a chain of standard pitch. Smooth
hard bearing surfaces for contact with the links and a care-
ful fit insure the chain against undue wear.

A recent publication of the Link-Belt Co., represented on
the Pacific "oast by the Ely Machinery Co. of San Francisco,
entitled Advance Section A' of general catalog No. 110, de-
scribes in detail the numerous chain belts and sprocket wheels
manufactured by this Company.

New Deister Products

The Deister Machine Co., of Fort Wayne, Indiana, during
the past year has placed a number of new machines on the
market, tot; which there is claimed marked advantages over
the older products. Among these it is claimed that the sim-
plex double-deck slime concentrator will handle twice, and
the simplex double-deck sand concentrator four times, the ton-
nage handled by the respective older type single deck tables.
The capacity of the six-deck tilting slimer is said to be
four times that of the old type single-deck slimers. The Com-
pany states that the multiple-deck machines are no longer
an experiment, but on the contrary have proved a great suc-
cess. They have been in continual operation in one of the
most up-to-date mills in the country for over a year, and
are so rigidly tied together and mounted that they have given
no trouble mechanically. In connection with these machines,
a blueprint is furnished for a stationary pulp distributor
which provides for an even distribution of feed to the decks.

Tin Deister Machine Co.'s 'Ideal' headmotion is interchange-
able and is used on all the latest sand and slime tables manu-
factured by this Company. Every millman knows that the
headmotion is the important factor in the operation of a
concentrator. Simplicity, durability, and efficiency of the

Ideal' headmotion. it is claimed, has been demonstrated in
nearly a year's constant operation. During this time, it re-
quired no attention other than the regular oiling. The prin-
cipal wearing parts are made of case-hardened steel and run
submerged in oil. It can be adjusted, while in operation, by
an adjustable eccentric pin in the rear of the motion. This
adjustment is independent of the means for adjusting the
stroke. The Company also equips decks of other types of
concentrating tables with the patented plateau and rifting
system, and thereby proposes to increase the capacity of these
tables without decreasing their efficiency.

Commercial Paragraphs

The June number of 'Leschen's Hercules,' the monthly pub-
lication ol A. Leschek & Sons Rope Co.. contains an interest-
ing description of the application of flattened strand rope to
coal mining operations in Utah.

The Westers Electric Co.. of New York City, has for dis-
tribution a most interesting publication entitled 'The Mak-
ing of the Voice Highways.' The publication presents a pic-
torial review of the history of communication and mode™
wire and cable making. The subject-matter is attractively
presented and of an educational nature.

An ENORMOUS CONVEYOR belt was recently made in Australia
by the Dunlop Rubber Co. for the Broken Hill Proprietary com-
pany. It is ts75 ft. long in seven sections, 36 in. wide, :: t in.
thick, 6 ply in the centre, 9 ply at the edges, weighs 30.5 tons,
and is to run at 250 ft. per minute. It will be used in load-
ing ironstone from the Company's deposits in South Australia
into vessels for conveyance to Newcastle, New South Wale.-,
where a large iron and steel plant is being erected.

July 4. 1-'1» MINING \M) Mil Mil It I'KI ■>- IS

In November 1909, the House of Lords, England, delivered a unanimous judgment in favor of
the Minerals Separation, Ltd., in an action brought by the Elmore Process. A similar judgment
was given July 24, 1911, by the New South Wales Court in an action brought by the same plaintiff.
The Elmores appealed from the decision of the Australian court in this action and in March 1914
the Privy Council of the House of Lords decided this appeal overwhelmingly in favor of Mineral
Separation patents.

In July 1913. in the United States District Court for Montana, The Minerals Separation
original process patent was completely upheld.

The recent decision of the Court of Appeal for the Ninth Circuit, reversing the decision of the
Montana Court, we regard as a temporary setback only, as it will not be accepted by us as final.

Minerals Separation, Limited, own nearly thirty patents for the United States, alone, covering
flotation processes and apparatus, all of which are controlled by the Syndicate. There are also a
considerable number of applications pending. These patents and applications cover practically
everything of value in the art, and include those of fundamental importance.

The Minerals Separation
Flotation Process

Is a General Method of Separating Sulphide Minerals from Gangue

The application of this method is being extended constantly to cover separations hitherto
considered impracticable. The newer modifications being developed and used have greatly re-
duced the costs of operation ami at the same time have increased recoveries and grade of concen-
trate.

No Mine Owner or Mine Manager Can Afford to Ignore the Developments
Which Have Been Made in This Method of Ore Treatment

At the very least they should state their problems to the Minerals Separation Company and
get advice as to whether or not the flotation process offers any possibilities in the treatment of
their ore.

The Flotation Process

As Invented, Perfected and Owned by

MINERALS SEPARATION, LTD.

has been successful practically everywhere installed, and millions of tons of ore are now being
annually treated thereby.

This is the Only Concentration Process Which has No Slime Limit

Mine owners, metallurgists and others interested in preventing mineral losses and reducing
the cost of treatment are invited to send their inquiries

Minerals Separation American Syndicate (1913), Ltd.

Sole Agents : Messrs. Beer, Sondheimer & Co., 61 Broadway, New York.
Chief Engineer: E. H. Nutter, Merchants Exchange Bldg., San Francisco.

NOTICE is hereby given that no one except our Chief Engineer and the agents named above is authorized
to act tor or represent Minerals Separation. Ltd.. or to introduce their process or apparatus into the United
States Canada and Mexico. A testing laboratory is maintained in San Francisco tor the purpose of testing
ores by flotation, and samples sent to our Chief Engineer there will be tested at minimum expense to pros-
pective licensees. No tests made by unauthorized persons can be depended upon In determining the amen-
ability of an ore to Minerals Separation Process.

MINING AND SCIENTIFIC PRESS

Julv 4. 1M14

PROFESSIONAL DIRECTORY

ENGINEERS, METALLURGISTS AND GEOLOGISTS

Arranged geographically. For addresses see cards on following pages.

RATES : One-half inch, $25 per year 148 cents per week). Combination >ate with THE MINING MAGAZINE of London.
one-half inch In each, $40 per year (77 cents per weeh . Subscription Included.

ENGINEERS IN THE UNITED STATES

ALABAMA.

Dodge, W. R

ARIZONA,

Blauvelt. Harrington.
Bureh, H. Ken yon.
Collins. Edgar A.
DeKalb, Courtenay.
Eye, Clyde M.
Smith & Zlesmer.
Ten I lever, Uneko.

( UIFOHMA.

Abbott, James W.
Arnold. Ralph.
Bain. H. Foster.
Beatson, A. K.
Benjamin, Edward U,
Bradley, Fred W
Bureh, Albert.
Burch, Caetanl &

Hers i
Caetanl, Gelaslo.
Carpenter. Alvln B.
Chodzko, A. E.
Clark, Baylies C.
Clark, C. C.
Clevenger, G. Howell.
Colbath, James 6.
Cranston, Robert K.
i -iikin, Fred H.. Jr.
Dennis, Clifford G.
Folsom, D. M.
Gibson, Arthur.
Grant, Wilbur H.
Grunsky, C. E., Jr.
Haley. Charles S.
Hartley. J. H.

Harvey, F. H.

} l< llrnann, Frederick.
Hoffmann. Ross B.
Holland, L. F. S.
Hubbard & Spiers.
Hunt & CO.. Robt W.
Huston, H. L.
Hyde, James M.
Janin, Charles.
Johnson, Harry R.

j ueseen, Edmund.
Keegel. P. A.
Kerr, Mark B.
Leslie. Eugene h
Mi Laughlln, R. P.
Merrill. Charles W.
Merrill Metallurgical Co.
Merrill. Frederick J. H.
Morris, F. L.
Mm id. Seeley w
Munro. C. H.
Myers, Desalx B.
.Will. James W.
Newman, M. A.
\m\ - s, William S.
' ismont, Vance C.
Pollak Co. The A. J.
Prlcbard, W. A.
Probert, Frank H.

rd. William H.
Ralnsford, R. S.
Ray, James C.
Ross, <;. MeM.
Royer, Frank W.
Scott, Robert.
Stmonde, Ernest H.
Sheer, F. L.

Smith, Howard D.

Stebblns, Elwyn W.
Btotms, William H.
'I'ln. nms. E. G.
Tolman. Cyrus Fisher. Jr.
Turner, H. W.

: i lernewltz, M. w.
Wartenwel ler, I >tto,

& Co.
Welch, R. Kemp
Wiseman, Philip.

Wolf. J. H. G.

COLORADO.

Allen & Colburn.
Argali & Sons, Philip
Bancroft. Howland.
Chase. Charles A.
Collins. George E.
Dorr, John v. N.
Farlsh, John B.

Finch, John Wellington.
Griffith & Co,, T. R.
Mills & Willis.

Holland, L. F s.
Reld, Walter L.
Rlckard, Forbes.
TImmons, Colin.
Toll. Rensselaer H.
Worcester, s. a

NEVADA

Cutler, H. C.
Ferguson, I tons Id.
Lakenan, C. B.
Symmes, Whitman.

IDAHO.

Anderson A: Son, G.

Scott.
East on, Stanly A.
Hershey, Oscar H.
Livingston & Stewart.

ILLINOIS.

Mollis. H. L.

Hunt & Co.. Robert W.

LOl ISI V\A.

Stanford, Richard B.

>i %ss I CHI SETTS.

i "■ I • i man. Alton L.
da, Robert H.

Rogers, Allen Hastings.

HICHIG \ V

Dlckerman, Alton L
Dimeter, Carl B.

MIXXESOTA.

Bowman, Frank A.
Collins, K.iwiu James.
WInchell, Horace V,

HISSOI It i.

Hall, R G.

K Irby, Edmuni I I :

Ma i" "tins.. n. Jas. W.

HO. NT AN A.

Bard, D. C
Creden, William L
Greene, Fred T.

XEW YORK.

Aldrldge, Walter H.
Armstead, Henry Howell
Ball. Sydney H.
Beatty, A. Chester.
Benedict, Wm. de L.
Brodie. Walter M.
Canadian Mining & Ex-
ploration Co., Ltd.
Channlng. J. Parke.
Clark, C. Dawes.
Cranston, Robert E.
Dorr. John V. X.
I ►ufoiijcq. Edward L.
Dwlght, Arthur S.
Er diets, J. F. B.. Jr.
Ev eland, A. J.
Farlsh, John R.
Fearn, Percy L.
Finch. John Wellington.
Flnlay, J. R.
Garrey, George H.
Hamilton, E. M.
Hassan. A. A.
Henderson, H. P.
Hendryx, Wilbur A.
Hunt & Co., Robert W.
Lindberg, Car] O.
Lloyd, U. L.
Lnngyear Co.. E. J.
Mercer, John W.
Mlnard, Frederick H.
Mines Management Co.
Olcott & Corning.
Perry. O. B.
Pol lion & Poirier.
Pomeroy, Wm. A.
Raymond, Rosalter W.
Read, Thomas T.
RIcketts & Banks.
Klordan. D. M.
Rogers, Allen Hastings.
Rogers, Edwin M.
Sharpless, Fred'k F.
Shaw, S. F.

Simon da & Burna.
Spllsbury, !•;. Gybbon.
Sussman, Otto.
Thomas, B. G.
Thomas. KIrby.
VonRosehberg, Leo.
Webber, Morton.
Westervelt, William

Young.
Wright, Louis A.
Yeatman, Pope.

OHEGOX.
Miller. Bernard P.

PENNSYLVANIA.

Ayres, W. S.
Chance, H. M.
Clapp. Frederick G.
DuBois, Mixer & Armas
Garrison, F. Lynwood.

Goudah', Stephen L.
Myers, Desaix B.

Queneau, A. L.
Spurr, J. Edward,

PHILIPPINE ISLANDS

Hanlon, Russell Yale
Mil 'ann, Ferdinand.
Wll t, M c.

TEXAS.

Bradley, i>. H.. Jr.

K'innon, Wm. H,

UTA H.

I iiiBnis. Mixer a Arms -
Jennings. E. P.
Kirk & Leavell.
Krumb. Henry.
Nell I, James W.
Sears. Stanley C.
Talmage. Sterling B.
Winwood, Job H.

WASHINGTON.

Bellinger. H. C.
Clark. V. V.
Clarke. Riiv H.
Mallhot, Charles.

ENGINEERS IN FOREIGN COUNTRIES

AFRICA.

Bosqui, Francis L.
Bristol. J. J.
Dixon. Clement.
Rotherham, G. H.

ASIA.

Beadon, w. R. Coleridge.

P. L.
I -i. lis. in. A. A. C.
Eardley-Wllmot, S.
Macnutt, C. H.
Vallentlne, E. J.

AUSTRAL! \.

Fraser, Colin.

Grace, William Prank.

Smith, J. D. Audley.

CANADA.
Banks, Charles A.
Brewer. Win. M.
Brown. H. B.

Canadian Mining & Ex-
ploration Co., Ltd.
Ferrler, W. F.

Samuel S.

m a i dman, John E.
ECelter, Frederic.
Klrby, A. G.
Lamb, R. B.
Levy. Ernest.
Lorlng. Frank C.
Tyrrell, J. B.

CENTRAL AMEBIC ».

Hartley, J. H.

EUROPE.

Ackerman, Audley H.
Alexander Hill &

Stewart.
\ ll.n, .\. W.
Ralph!
William.

Ion, ii. c.

on, W. I:. Coleridge
Beattv, A. Chester.

Botsford, Robert S.
Bray. Francis P.
Brown, r;. Oilman.
Chaplin, George P.
Collins, Henry F.
Curie, J. H.
I 'linker. A. E.
DuBois, Mixer ,£: Armas.

is. .!. F. B.. Jr.
Fennell, John Howard.

' ;. r it. i: M.

Henderson, J. A. Leo.

' l.arles S.

Hollowas . ' ieo. T. & Co.,

i.i.i.
Hoover, H. C.
Hoover. Theodore J.
Hunt, Bertram.
Hutchins. .1. p.
Inder & Henderson.
Inskipp & Beyan.
Jones, 1 1' ii ry Ewer.
A. F.
mi, W. H,
Lorlng, E. A.
Lorlng, W. J.

Mlchell. George V.
Mines Management Co.
Nichols, Horace G.
Nicholson, Francis
l'.iwle & Brelich.
Payne & Co., F. w.
Pearse, Arthur L.
Perkins, Walter G.. & Co.
1'risk. Thomas H.
Pui-lngton. Chester W.
Queneau, A. L
Rlckard, Edgar.
Rlckard, T. A.
Romer, B. F. P.
Shaler, Millard K.
Smith, Reuben Edward.
Stephenson, Geo. E.
stiiu-s. Norman C.
Stockfeld. G. A.
Teale, J. W.
Thomas, E. G.
Tin. mas. H. M.
Thome, W. E.
i Thurston. E. C.
Titcomb, H. A.
Turner, Scott.

\\ ea i herbe, i I'Arcy.
Wright, Charles Will.

MEXICO.

Armstead, Henry Howell
i teldwell, Forest B.
Gr. .the & Carter.
1 1 oyle, Charles.
Minis Management Co.
X 1 1 ill. Arthur C.
i lid field, Frank W.
Raymond, Robert M.
Royer, Frank W.
Simpson, w. E.
Stevens, Blarney,
Tweedy, ' leo. A.

SOI I'll IMBRICA.

r nil.- & Davidson.
Couldrey, Paul S.
i Jamba. F. Perelra.
Hellmann, Frederick.

Lamb, Mark R.
Lewis, II. Allman.
sit a nss, Lester W.

.Inly 4 I9H

MINING \M) n II \i 11 it PR| sv

PROFESSIONAL DIRECTORY

ABBOTT. James W ,

BANCROFT,
> eaaaitiaa

i .eni
Cable Hownan

Howland,

MI..I.... <.r.>l»Kt.l.

llilll.llHK.

Coda II.. If. .i.I M.N

•111

BRADLEY, D. H„ Jr.,

H< ■ i I. >.l i ... I,.. . ,

"**»- I""" U..HII-

ACKERMAN, AudJey H.,

Mliilii* Cuilurrr.

BANKS. Charles A.,

Minim; nml »l. i itlliti iil< ii I linulnrrr.

U.I
P ■ I

A ,,..,] |t I '

BRADLEY, Fred W.,

M IiiIiil, I lltlnrrr.

I Cod. II. .If- .-.I M. .Will

ALDRIDGE. Walter H .

HlalttK in. I M. i -II,.. l. i. .1 KuKlnrrr.

u m i'.. Thorn p

It Wall 81 . Ne» ^

BARD, D. C,

.lli.luu ..

aotofflaf

p .1 II...

Hull.-

BRAY, Francis P.,

tlluina

liimlnrrr.

i" : Eliiln :.. nu<

London, u

I'lliK

Cable Patrlclue, i

Code: It...

imhaU'a Irani rial

ALEXANDER HILL & STEWART,

I onviitlluK I '.iiuln«-«r- anil M «-i ■■ 1 In re 1*1 B,

I Broad 81 don* E C.

BAYLDON,

Mil. hit:

Port, No - B
R

Baa
ussla.

nrtr,

oaky

Oblaat,

BREWER, Wm. M.,

.iinii.u KiikIih'.t iiml Qaoleerlat*

P. ii. Bos 701, Victoria, B I

Cable: Brewer. Code: Bedford M NalU,

ALLEN, A. W.,

Mrinlluru. of tiold null Ml. it.

Inal M ... M.
1 riiisi.iuv Clroua, London, E. C

Platalenor. IV.:.il ■ .■.!■-

BEADON, W. R. Coleridge,

>l InluK Engineer.

% A. Scott & O H S. King & Co.,

Ron froon, Bur ma. 6G Corn ml),

Cable Mentor, Rangoon. London, E. C.

BRISTOL, J. J.,

Mlnlntc I^iik) nrt-r.

\ bbonl io koon Mine, 1
I told Coaat Colony, Weal Afrl

ALLEN & COLBURN,

lOoKlnrrrm.

.Mining, Hydraulics

aflll Irrigation.

[deal r..it. . Denver.

BEATSON, A. K.,

Mining KuiflneiT.

Kormerly manager Big Bend, CaL

Later at Latouche, Alaska.
113 Union Oil Bdg., Los Angeles. Ca!.

BRODIE, Walter M.,

Mining l-Cnglncrr find Melilllnru i-.r.

Car*.- Batopllas Mining Co..
IS Broadway, New York.

ANDERSON & SON, G. Scott,

Ooaaalllas Mininic Bawlaeeia.
Wallace, Idnh...
,i u.-ii, Mines.

B. .ii"! .: McNeill

BEATTY, A. Chester,

" .mi-, ii 1 1 I nu >| lilt nu I'innlK.'IT,

71 Broadway, New York.
No. 1 London Wall Bdgs., London. E.C.
Cable: Granitic. Code: Bedford McNeill.

BROWN, H. B.,

British Columbia Mines Bought. Sold,
and Operated.
Pacific Block, Vancouver, B C.
Hedley, B. C.

ARGALL & SONS. Philip,

MinliiL and Metnlliirnleiil Koulnfrrit.

Flret National Bank Bldg., Denver.
Cable: ArgalL Code: Bedford McNeill

BELLINGER, H. C„

^It-tiilhiruii'nl l-'iiiuiiu-.T,

Spokane. Wash.

BROWN, R. Gilman, e.ji.,

( 'on n nil in u Engineer.

62, London Wall, London, E.C.
Cable: Argeby, London. Usual i_' ..led

ARMSTEAD, Henry Howell,

< on»iiltluK Mining EiiKlueer.

29 Bi oadway, New York.
ApartadO 65. Guanajuato. Mt-xico.

BENEDICT, William de L.,

Mining J 'Jic In.-.r.

19 Cedar St., New York.

•h. Ca.tn

ii A EXershey

BURCH,

Albert,

IIINUllltlK

Engineer.

Crocl

er Bdgr.,

3a n I'Yancisco.

I'nl.l.-: Miin-li.

Usual C

■ les.

ARNOLD,

Ralph', cam.

•: Ralf

arnoil.

ini.l IV.n.lt'i.ii

KdkI

ncer.

Union oil

Btdg., Los Angeles,

Cat.

116 1

roadway. New

York.

No. 1. 1...H.I.

n Wail Bdgs.

Londa

i E.C.

BENJAMIN,

Edward H.,

Conanlttna; Miu

ng Englm

er.

80S Linden

Streel

. Oakland

Cal.

BURCH, H. Kenyon,

Mechanical mid Metulliirglcnl Engineer.

i lare [nsplratlon Consolidated

Copper Co.,
Miami, Gila County, Arizona

AYRES, W. S.

Mining and Mechanical KukIuwt.
i [azleton, Pa-
Consultation, Exam., Reports. Many

years' exp. as M^r, i n.n a ml ' '--al Mines.

BLAUVELT, Harrington,

Mlnlnic Engineer nnd Metallurgist.

Prescolt, Arizona.
Mines examined and reported upon.

Khm h, Cn.-iiinl & llnshrv

CAETANI, Gelasio,

Consul < I ng lOiiglneer.

I. 'rocker Bilg.. San Kra ncisco

Cahle: CaetanL Usual Codes.

BACH, William,

Placer Engineer.

Glyngartli. Beecliwood Rd.,
Sanderstead, Surrey. England.

Code: McNeill. 190S.

BOSQUI, Francis L.,

ConHultlng Metallurgist!.

Rand Mines, Ltd..

Johannesburg, Transvaal.

Cable: Eranbo. Code: Bed. McNeill. 1908.

CALDWELL, Forest B.,

Supt. Canib-la ria Land. Mining & Power

Co., Ltd.; Cons. Kng. Kstaca Min. Co.,

San Dlmas, Durango, Mexico.

Code: Bedford McNeill.

BAIN, H. Foster,

Mining Geologist.

Editor Mining and Scientific Press.
No professional work undertaken.

BALL, Sydney H.,

Mining Geologlnt.

71 Broadway, New York.

Cable: Sydball. Code: Bedford McNeill.

BOTSFORD, Robert S.,

1 1 i 1 1 i n ii 10 li g I n e «' r.

Nicolo-Pavda Mg. Dist. Co.. Pavda

Estate. Vyla Station. Bogoslovak, R. T.,

Government of Perm. Russia.

BOWMAN, Frank A.,

Mining Engineer.

Plans, Surveys, Reports, Management.
Gilbert, Minn.

CANADIAN MINING &

EXPLORATION CO., Ltd.

Consiililnic Mining; Engineers.

Mines ami Prospects Purchased

or Financed.

43 Exchange Place, New York City.

Canadian Offices:

Traders Bank Bdg., Toronto. Ontario.

Drake Block, Victoria, B. C.

MINING AND SCIENTIFIC PRESS

July 4, lftU

PROFESSIONAL DIRECTORY

CARPENTER, Alvin B.,

Mluinic lOnKlaerr.

' 'all rornla Bdg . Lew Ansel*

COLBATH, James S.,

Examination, Development,
and ' ipcral Ion of Mini

Cyanide Pr s^

."j<i Gramercy Place, ix>s A

E
pt

;: g

mil

• i t

■'.■.

l the
Cal.

DICKERMAN, Alton L.,

Multifile tllnluic l-lnnliifiT.

70 State St., Boston, Mass.

temporary address: Houghton, Mich.

CHANCE, H. M.,

Coal.

■ uiHiilf Ink Mining; I ' hi; i nt-.-r.

:; D rex el Bdg.. Philadelphia,

•

COLE, F. L.,

Mining 1 'iiuliM-.-r.

China.

Cable: Banco.

DICKSON, Archibald A. C,

M 1 n in Li 1 ■', ii tliit-t- r.

ECodarma, K. f, Ry„ Indli
Cable: Dickson, Nawada. Usual

Codes.

CHANNING, J.

Parke,

' i'11-ii 1 1 t mi;

1 :nulii'-«-r.

61 Broad wa j

. New YMik.

COLLINS, Edgar A.

II I ii in u Kuelnecr.

I ""ii n wealth Mine,

Peai ce, Arizona.

DIXON, Clement,

M I it in i; i:uuliifiT.

P, O. Box 306, Bulavi i i m;i.

Cable: Clement Dixon. Usual Codes,

CHAPLIN, George P.,

All ill UK I i ni; i ii«- it.

■ ; 1 1 ..■ Bruce Harriott & Co..
:. London Wall. London. E.C.

COLLINS, Edwin James,

MlnhiK Lniiliieer.
Mine Examinations and Management.
1008-1009 Torrey Bdg. Duluth. Minn.

DODGE, W. R.,

MflnlliirKl.'iil

engineer.

RusseUville.

Alabama.

CHASE, Charles A.,

MlnlllK KniA iiirrr.

1?A First Nat. Hank Bdg.. Denver.
Liberty Bell <i M Co., T.-lluride, Colo.

COLLINS, George E.,

Mlnlmc I liitiliit-t-r.

Mine Examinations and Management.

120 Boston Bdg„ Denver.
Cable: Colcomac.

DORR, John V. N.,

Metiilliirgleul ICugiiieer.

First Natl 1:. mk lids, Denver.

50 Church St.. New York.

Cab].-: lien. i,„i,. Bed McN., West TJn

CHEDE & DAVIDSON,

roiiMiiltliiK Mining lODKlnrcrn.

Examinations and Reports.

1: presentation and Management of
Foreign Companies.

fall. Rep. of Colombia, Smith America.

Chedavl.
Codes: Bed. McNeill. Lleber, A. B.C. 5th.

COLLINS, Henry E.,

II I ul ii u Ktiuiuet-r.

Huelva Copper i: Sulphur Co., Ltd..
Valdelamusa, Pro\ . de Huelva. Spain.
Cable p. Code: Broomhall.

COULDREY, Paul S„

Mining; Eneinter.
Gen. Mining Sup1 <Vrro de Pascn Min-
ing Co., Oerro do Pasco. Peru, S. A.
Cable Cerrocop.

DRUCKER, A. E.,

Metiilliirgleul Engineer.

62. London Wall. London, F..C.
Testing Designing, and Constructing

Plants lor Gold. Silv,.,- and Copper Ores

Dubois, mixer & armas,

Consulting Mining engineers.

302 Harrison Bdg.. Philadelphia.
229 S.W. Temple St . Salt Lake Cltv.
' Boul. Eroile Atigler, Paris. France.

CHODZKO, A. E.,

Conn uii Iiik Mechanical Knulnccr.

Specialty: Compressed Air.

17 I'll. -la ii Bdg., San Francisco.

CRANSTON,

Mini

i:'.7 Holbrook
Room 1 108, No
Cable: Recrans,

Rohert E.,

UK engineer

IMs.. San F

1 1 Pine St..

Cod,-: Mi

ranc
New
Net 11

SCO.

York.

190S

DUNSTER, Carl B.,

Mining Engineer.

Savings Bank Bdg.. Alar itte, Mich.

Mgr. .Mines Dept.. Breitnng & Co., Ltd.
New 'H ork-Chirago-Cleveland-Marquette

CLAPP, Frederick G., cms/ Oeoiogui

Associated GeolajElesd Engineer..

Reports on oil. lias and Mineral

Properties.

^01 Fourth Ave. Pittsburg. Pa.

CREDEN, William L.,

Conitiiltlng Mining Knglurer.

Mine Examination and Management.

First National Batrk Building,

Butte, .Montana.

DWIGHT, Arthur S.,

Mining; Knelnerr and Mi-inlluruUi.
j:t Broadway. New York.
Cable: sinterer.

<""■"»'-: Bed. McNeill; Miners & Smelters.

CLARK, Baylies C.,

Mining; imil Mrrlmnlcnl Kng Im-rr.
Sutter Creek, California.

CURLE,

H.,

Mine

nlner.

ndon

all, London.

EARDLEY-WILMOT, S.,

Mining Hnglneer.

10. Strand Road. Calcutta. India.
i !able Warble, Calcutta,

Codes; Bedford McNeill; West. Union.

CLARK, C. Dawes,

Minim; and KIIU'lrDi-y I ' m; 1 1 r.

Mining and Industrial Economy.

Wltb w. Rowland Cox and Staff.

165 Broadway. New York.

CUTLER,

Mini

IIU

lai«ineir.

, p

eno, Nevada

Code: Bedford

McN

-ill.

EASTON, Stanly A.,

M In in c I lim i iit'i-r.

Manager Bunker Hill & Sullivan Min-
ing & Concentrating Company.

Kellogg. Idaho.

CLARKE, Roy H.,

Mining Knglarrr.

Old National Bank Bdg.,
Spokane, "Wash.

DAKIN, Fred H., Jr.,

Mining; Knglnrer.
1 1 a Sutter St.. San Francisco.

ERDLETS, J. F. B., Jr.,

Mining I ".iiulm-'T.

.", London Wall Bdgs., London. E.C.

I.". Broadway, New York.

Cable: Branderlet. Usual Codes.

CLARK & CLARK,

I outlining Mining engineer*.
C C. Clark. V. V. Clark.

Broadway, 4 44 Henry Bdg..

Oakland, Cal. Seattle. Wash.

DE KALB, Courtenay,

Consulting Engineer. Pacific Smelting

& Mining Co.

Tucson. Arizona.

Cable: Dekalb. Code: Bedford McNeill.

EVELAND, A. J.,

Minini; Engineer.
Broadway. New York.

CLEVENGER, G. Howell,

Melullurglenl Engineer.

381 Hawthorne Ave.. Palo Alto. Cal
i lode: Bedford fccNelll

DENNIS, Clifford G.,

Mining Engineer.

Crocker Bdg., San Francisco. Cal.
Sinned i !ode Bedford McNeill.

EYE, Clyde M.,

Mining Engineer.

Permanent mail address:
Box 1298, Phoenix, Ariz.

t I •• I *

MIMV. AM) SI II Mil I- I'KI SS

PROFESSIONAL DIRECTORY

FARI8H. J B

*•!•!■» Itoi Ur ff.
-rl«h.

FEARN. Percy I.

MlnlHK t:n«lMr«-r.

FENNELL. John Howard,

'Ho In ■

England.

FERGUSON. Donald,

-ii.ilii. mi,,i,,^ Kaslnrrr.

Nov.
Mor. In| t ••! McNeill

FERRIER, W. F.,

I ••ll^llllllIK Mllllllw I liliHi'i r i.i.l

l.folo K Ul.

. i Lamsd*o Bdg.. Toronto. Ont.

GIBSON, Arthur,

llalaa i:a«lar«.r.

- ma
i >I«M Si . Kan I

GOODALE, Stephen L..

'lining CniUrrr.

M ' Uluricv.
I'nli

I'lM ■'■ .Ik'

GRACE, William Frank,

»lluli,ii I ntlllrrr

Wallil. N Z

>■" •■•.<■■■ Lilly. U.uul • '...I, ■«.

GRANT. Wilbur H.,

i..-nli>Kl<' i:ii K lpr«>r.

i li Holbraok Bdg .-■.in

Code: Bedford Mi Mi in

GREENE, Fred T.,

Hlnlasj Bagrlaeer mill GeelotTlst.

101-2-1 state Saving! Bank Bdg

Butte Montana.

HARVEY, F H ,

HASSAN, A A ,*"■'"" :-••"•«'- —i

HELLMANN, Frederick"

»iinio« Walla., ,.

■•"•'- "- ".-Mi...: M ' N

HENDERSON, H. P.,

'Mi. int Kiialurrr.

'■•'■ Broadway, Now roi li

HENDERSON, J. A. Leo^

"iuIiik BaglavcT aad Geo'loa-lat.

London, .

cable: Olco.opl , ,„|„ ,.,.,, M ,. V „ M ,

FINCH, John Wellington,

<.<-«>l<ficl*tf .iimI I iiiiiiin-r tif Mm

Ti Broadway, Now Fork.
- Bdg.. Doovor

GRIFFITH & CO., T. R.,

< onnt rin- 1 Iihi. >lct ii 1 1 u ru i. n 1
( oUMiiltlriK 1 ml: in. . r>

i 16-417 Central Sn . Inga Bank
Denver, Colo,

1 ml

Bdg ■

HENDRYX, Wilbur A.

.. ,. Hetallnrarart. '

;, ' , ■•"■' ■'■■■<' Mar. Rend, i i !i ,„,,i..
Hen'ol WlUlam SI . NY

FINLAY, J. R,

tllniut. I'.mlHrrr.

II William

81 ,

Now york.

FOLSOM, D. M.,

Mining K DIE I tiff r.

Stanford tjnlveralty, Callfoi

GROTHE & CARTER, B^SeSa,
Patented S3 stem "f Pulp Agitation.

teal Imnrovein-

-.1 s.ui Agustln 53. P. 11, Bo* .'•.•.I

M..-xlco, P. I'.

GRUNSKY, C. E., Jr.,

Minii.u I :imln..iT.

American Engineering Corporation.
57 Post St., San Francisco.

HERSHEY. Oscar H.','

I iinniilflnic >llnliitc OeolOKtaf

, Kellogg-, Idaho.

' ■' ll|,,: 'l.-isli.-y ,-,.,!.. |.„ ,!,,,,,! McNeU ,

HERZIG, Charles S.,

Mining KiiKiiit-tT.

1. London Wall Building*. London, B.C
• able: f ierzlg.

FOWLER, Samuel S.,

MlitinK Knxlnrrr anil >l.i nt J.i ruNi.

Nelson, British Columbia.
Cabl-: Fowler. I's'ial Codes

HALEY, Charles S„

lllnluic KiuclnefM

Placer Drilling.

:i Post St.. San Francisco, Calif oral

HILLS & WILLIS,

Victor ■;. Hills. Frank G Willis
Mini. in Enaii r.

.''Vl 1 ,',','r "''■ : " M ' ■'' Bdg.. Denver.

' ■''■'■■ I'niwiii. Usual Codes.

FRASER, Colin,

Minim; Geologist.

Bank of New Zealand.
Sydney, N. S. W.

Code: McNeill. 1808

HALL, R. G.,

M. Uilliirtl

Gen. Mgr

fill unit

United /
Kansas

1 li.ini.ii 1

line & Ch
City, Ho.

Kn«l

emlca

.fpr.
Co.,

HOFFMANN, Ross B.,

>l 1 11 In u Kniclni't- r.
228 Perry St.. Oakland, Cal.
Cable: F.osshof.

GAMBA, F. Pereira,

« .01-iilt laic MlninK Engineer*

Reports on Mines In Southern Colombia.

Tmiuerres, Colombia, S. A..

via Panama y Tumaco.

HAMILTON, E. M.,

Metallurgist.

Specialty: Cyanidlng Gold and Silver

Ores.
Room 1883, 50 Church St.. New York.

HOLLAND, L. F. S.

Mining Engineer nmi HetaUurgfls

Examinations and Reports

«t»l II. W. H-llniun Bdg,
Los Angeles. Cal.

GARREY,

George

H.,

ConMullluK Minim.

Geol

agist and

r.itiil n

eer.

115 I-.

roadway.

New

York.

HANLON, Russell Yale,

>linlni; I : iiu iiifi-r.
Manila, P. I.

1 ai.l.-: Nolnah. Code: Bedfrn .1 McNeill.

HOLLIS,

L.,

Conn

ilfli

IC Mini

nic

llriKl

nrrr

mid

Metal

iiriclNt.

1117 First

Natl

»nal B

ink

Bdg

, Chicago.

GARRISON, F. Lynwood,

M In I nu Engineer.

:••„ Drexel Bdg., Philadelphia.
Cable: Aurum. Code: Bedford McNeill.

HARDMAN, John E.,

• ruin 11 1 1 I nu 111 ni ok l-'.imiii'-rr.

112 .St. James St., Montreal. Canada.

Cable: Hardman. ('ode: Bedford McNeill

HOLLOWAY, Geo. T. & Co., Ltd.

MetnUorgtsts ami Metallurgical
E-aarlaeexa.

9-13 Emmetl St., Limehouse. London. K.
Cable: Nedlithlc. Code: Bedford McNeill.

GEPPERT, R. M.,

Hlnlag 1 :ituiin*i-r.
' Salisbury House, London, E.C.

Code McNeill i Both Editions)

HARTLEY, J. H.,

m iniiiL. Btafflneer.

ngi rez ■ lold Fields <ie Co
Temporary Address:
jt:^2 Webster St.. Berkeley, Cal.

HOOVER, H. C,

Mining Engineers

1 London Wall Bdgs., L-.nd.-n. EC.
No professional work entertained
1 ;able: ' !revooh, London,

MINING AND SCIENTIFIC PRESS

July 4. l!»14

PROFESSIONAL DIRECTORY

HOOVER, Theodore J.,

Mining Engineer.

! i.,,, „ Wall Bdgs., London, E.C.

JONES, Henry Ewer,

MlllllIU I'.lltlllftT.

Parliament Mansions. Victoria St.,
Westminster, London, s. W.
Ewerones, Code:BroomhaU'8 Imp.

LANAGAN, W. H.,

Mining KDKluerr.

ursk iloldlields. Ltd

Nlkolalevsk, Eastern Siberia.

lahlc: Urskulil Code: Mc.V. (both ed

HOYLE, Charles,

Mining Engineer.

Apartado 8, EH Oro, M- %\t

JUESSEN, Edmund,

11 ininu KiiK'int-fr.

906 Mechanics Inst. Bd«..
San Francisco,

LESLIE, Eugene H.,

HlBlug Engineer.

Assi Editor Kilning and Scientific Press.
No professional work undertaken.

j , ih; James Spiers.

HUBBARD & SPIERS,

MinitiK. Metallurgical und Mechanical

I '.Hullirrritlt'.

vi;: .Mills ll.iildum. San Framrlsco.

KEEGEL, P. A.,

Minim; KllRllieer.

alty: Cyanldatlon Plants Installed.
U E. Market St.. Los Angeles, Cal.

LEVY, Ernest,

Mining Engineer.

Representing Alex mil & Stewart

Kossland, British Cnlmbia.

' -j ■ ■ 1 - ■: Truculent, '.'ode: Bedford McNeill

HUNT & CO., Robert W.,

I Snjrlnccia*

Bureau ol Inspection, Tests 4 Consul

Chicago-San rtaWo-Sm Yora-MUsburg.

san Kranelsco i niie. . i',1 Kearnj st

St. Ixmls-Moutreoi-liOndon.

Consulting, Keslgalng and ^ " i 1 , ""■'-''":. ,,'i";
ameers, rnsueelors ol Kaliroad. Mruciurai

and other Materials and Equipment.

Chemical ami Physical Laboratories,

KEFFER, Frederic,

Mining Engineer nnil GeoloKUrt.
With

The British Coli la Copper Co., Ltd.,

Greenwood, B. C.

KERR, Mark B.,

Consulting Mining Eugineer.

626 Mills Bdg., San Francisco. Cal.

LEWIS, H. Allman,

Mnunging Engineer.

The Berenguela Tin Mines. 1.

Address. •', QlbbS & Co., Oruro

Code: McNeill i

LIVINGSTON & STEWART,

D. C. Livingston. C. A. Stewart.

Mining Engineers and GeologUtM.

Examinations, Reports, Surveys, -Maps
Moscow, Idaho.

HUNT, Bertram,

Meinllurgl*t
| E. Hunt A •
123 Weal i leorge St., 1 1

KINNON, Wm. H.,

HI nine Engineer nnd Hatnllurglst.

307 San Francisco St.,
El Paso. Texas.

LLOYD, R. L.,

Metallurgical Engineer.

Specialty: Pyro Metallurgy or Copper
and Associated Metals. Cable: Rlcloy
Code: Bed. McNeill. 29 Broadway, N T.

HUSTON, H. L.,

Mining Engineer.

Alaska Commercial Bdg-,

'ra nclsco,
Haruston.

HUTCHINS, J. P., Mining ICnclmrr.

imlnatlons in Russia and Siberia.
20. Qalernaya. St. Petersburg;
::ti Salisbury House. London, E.< .
Cable.: Getchlns. ' '■■,!■■. MeX. ■ -' ■ d ■ :\\ .' ■

KIRBY, A. G.,

Metallurgist.

Mill Designing and Construction.

Spei laity: Concentration & t 'va nidation.

Dominion Red Co.. Cobalt, Ont

KIRBY, Edmund B.,

Mining Engineer i Metallurgist.

918 Security Bdg.. St. Louis.
Specialty: The expert examination of

iiiin.s urn] no-la MuigJLal enterprises.

LONGYEAR COMPANY, E. J.,

Exploring Engineers and Geologists.

Diamond Drill Contractors.

Manufacturers ol Diamond Drills

and Supplies.

General Office: 710-722 Security Bank

Bdg., Minneapolis, Minn.

Cable Address: Longco. Minneapolis.

Code: Bedford McNeill.

HYDE, James M.,

Ti • atment of Difficult i ires
American Agent Murex Co„ Ltd.
Alaska Commer. lal Bdg . Si ( ra
Cabli

KIRK & LEAVELL,

< iiii-n li I hl: I'inuiiM'i-r-.

Exa mi nation, Management and Opera-
tion of Mines. Design Equipment.
Newhouse, Bdg., Salt Lake City, Utah.

Bewick, Moreing & Co,

LORING, E. A.,

Mining Engineer.

62, London wall., London, B.C.

Cable: liine.li, Usual Cl

INDER & HENDERSON,

Consulting KoBinwrn.
Dredging and Hydraulicking.
Tii i Sracecl urch St., London, E.C.

^^^

KRUMB, Henry,

Mining Engineer.

Kelt Bdg.. Salt Lake City, Utah.

LORING, Frank C,

Mining Englncrr.
Ho Life Building. Toronto, Ontario.

Dudli-v J. Insklpp John A B

INSKIPP & BEVAN,

Mining Englnt-t-r*.
1. Broad St. Place, London

Monazite. Usual < 'odes.

KUEHN, A. F.,

4 oimuliliig Mining KukIih'<t>.

1 London Wall Buildings.
London. E.C.
• :able Norite.

Bewick, Moreing t v Co.

LORING, w. J.,

Milling Engineer.

OJ. London Wall., London, E.C.
Cable: Wanton-ss. Usual Codes.

JANIN, Charles,

Mining Engineer.

620 Kohl Bdg.. San Francisco.
Cable: Charjan. Code: Bedford McNeill

LAKENAN,

B.,

Ml,

ill..
Sly,

Engineer.

Nevada.

MACNUTT, C. H.,

Mining Engineer.

Care Burma Mines, Ltd ,

Namtu, Northern Shan Slates.

in ma, India.

JENNINGS, E. P.,

Mining Engineer.

Salt Lake City, Utah

Salt Lake.

Code: Bedfoi.l M Neill.

LAMB, Mark R.,

K<|lll|l|IIT.

Mgr Ail is-t .halmers Co
Santi.i go i !hlli

MAILHOT, Charles,

iiydrimtof itiiurKy of Copper.

Permanent address: E. 1707 Mission Av.,

Spokane, Ws i I

JOHNSON, Harry R.,

Consulting GeologlM.

Petroleum, Water Supply.
'! V7. II. ■Ilman Bdg., Los Angeles.
Cable: .lopot. Usual Codes.

LAMB, R. B.,

.Mining Engineer ami Metallurgist.
Traders Bank B

Toronto, Ontario. Canada.

MALCOLMSON, Jas. W.,

* on -ii 1 1 inu Engineer.
1012 Baltimore Avenn.
Kansas City, Mo,

.Ink 4 1'iM

MINING \\l> m II \ 1 II |i |'|<| SS

PROFESSIONAL DIRECTORY

McCANN. Ferdm.unl.

< 1 1 ar« alar, r

MYERS. Dcsaix B ,

Miiilttft liHilarrr.

PERRY. 0. B.,

'H'-iiii. i ..

Mclaughlin, r p.

i .•u*iiI|Imk *.r»lt>Kl«l nii>l Inglnrrr.

NAHL,

Arthur C,
>u.,i,.« i;. a

■ rrr.

■ ..in.

I M In.

POILLON & POIRIER,

Howard Pol lion i n

Mining lillKlHrrr.
':'.< Willi SI

MERCER. John W ,

HI k Knal»r«T.

I Bl N- " \ ■•' k.

NEILL. James W.,

Hrlnlllirul"! mill tllulnu Kiih t nrrr.

■ i ,.-. pom 81 Ball Laki , Dtah,

Sin 111 hk. i 'a I.

POLLAK COMPANY, THE A. J.,
i i>ii*iiitiiii£ I'.-ir.iiriim Burlaoera
California ml Prop,
Mill- Building, B

I'ulil.-: pi-lrmig |

MERRILL,

Charles W.,

MrtnllnrKl*!.

nil Bl s.i n !

Code* Bedfon
ii,i M..i pins

III

..1

i. iii.ii

NEWMAN,

A.,

■lillK

Kuilnfrr.

\ .inn.

lit

■la •• . Cal.

PRICHARD, W. A,,

*l IliliiU l:null|r«T.

Room 210 i' ... California Bl .
Ban Francisco.

MERRILL METALLURGICAL CO.

Kaglnrrr*.
l.'l Si. ODd 8t, -San Plain I

Usual i tofli i

BalnbrldK' Sej mour .v « Ho

NICHOLS, Horace G.,

Milll.lt, I Mtill.ll

Sallsbui t i louse, London. E.I '.

K.is.-ra. ' ual Code

PRISK

Thomas H.,

Mlnlna Knalni-rr.

Bt Ai;i

Wall

MERRILL, Frederick J. H.,

M I in in. Knit I or*- r nod GcolOfflat.
i;. nloglst ol New >••> k
nt Bank ltd* .
Los Angelas. Cal

NICHOLSON, Francis,

Mlulng I :.ifc;l r.

'. London City & Midland Bank. Ltd.

London, B.C.

Cable: Nlckl c,„i,. : M.N.iii, mux.

PROBERT, Frank H.,

1'i.iiNiillliiK KiiKlneer mill Mlnlnu

Qeolofffat,

' 'i ntro i Bdg\, Log \m, lea, Cal
'•■•■idi-i it it. Code: McNeill

M1CHELL, Geo. V.,

Militate l^naluerr.

S|.. I

IS • ;••.. i st Helena, London. E. C

NOYES, William S.,

Mlt.litu Ciiulneer.

919 Mills Building, San Francisco.

PURINGTON, Chester W.,

Mining lCnglnerr.

'•-'. I don Wall, London, B 1 1

Cable: I h. nek. i i lode

MILLER, Bernard P.,

MlnlnK KnKlnrrr.

simi st . Portland, Or

OLCOTT & CORNING,

i E

■ III ott. C. It. Co

•nlng.)

Mlnl.it

mill MeliillurKli-iil

KiiKllit'iTM.

16 Wall St.. New V

irk.

QUENEAU, A. L.,

Ui-Ciillui-Klriil Kncliiirr.

Zinc Smelting and Electrometallurgy.
Jemeppe Bur Meuse, Belgium.

i'ulil.-: Aijimak. '.':'■.' CheBtnul St., Phi la,

MINARD, Frederick H.,

MlnluK Knulnwr.

Trlnltj Bdg., Ill Broadway, New fork.
Prednard

Cod< McNeill.

OLDFIELD,

Frank W.,

Mill

ECoaTlneer.

.1 !

Mlins Co.

Uolauos

lisi.-n, M. vii ii

RADFORD, William H.,

Alluvial mi ii int.
2SB0 Broadway, San Frai
Cable: Bandan.

elan

MINES MANAGEMENT CO.,

CoaaoltlnK Mining BBglneen «nd

lli.i,- MiiniiKi'rn.

,1 Broadway, New York City
Branches:

London, England.
28 .-in. I 89 St. Swltlilns Lane.

Mi -.ieo, D. F..

Avenlda 1G de Septlembre. Num. 48
Minium... .. Code: Bed. McNeill.

OSMONT, Vance C,

MlnlnK I'JiKlnrcr.

L03E Mon idnock Bdg..
Sa ii Francisco.

PAWLE & BRELICH, B nSSS».
(Reginald Pawle, Henry Brellch.)

Balfour Hi. us.-, Flnsbury Pavement,

London. E.C.

Cable: l-hu....i.- c.de: lied. M.Neill.

RAINSFORD, R.

Ml nl nit 1

Manager Argon

,l;n.'ks'Ui, A niail'H' i

s.,

lilt

"nil

lll'IT

.Min
tty,

Qg Co

!allfori

RAY, James C,

MIdIdk Geologist.
Microscopic Examination of On
Palo Alto. Cal.

MORRIS, F. L.,

Mining l.i.uln. • '

1051 Monadnock Bdg.. San Franclaco.
Cable: Frednror Code:Bedtord McNeill.

PAYNE & CO., F. W.,

Dredging BInjBlneejrs.

82 London Wall, London, E.C.
Cable: Payfidredge. Code: Beet McNeill.

RAYMOND, Robert M.,

Mining Engineer,

The Bxploratl !o. of England and

Mexico. Ltd. Mutual Life H.Ik. n... .'.j::.
M.xlco. D. F.

MUDD, Seeley W.,

Mining I :n- in.'i'i

1208 ll..lllngsworth Building.

Loa Angeles. Cal.

Code: Bedford Mi Ni in

PEARSE, Arthur L.,

Mlnlim Bna/lnrer.

Worcester House, Walbrook,

London, E.C.

!able: Undermined. Csual Codes

RAYMOND, Rossiter W.,

Mining Engineer ami Metallurgist.

:':i W. 89th St, New York, i 1 O. Box --'

MUNRO, C. H.,

kilning engineer.

Monadnock Bdg., San Francisco.
Cable: Ornum. Code: Bedford McNeill.

PERKINS,

Mem

Lone

Walter G., & Co.,

I.i.uo :.l EiiKlnrer.
. London Wall,
on. E.C. England.

READ, Thomas T.,

Mlnlnu and Sclentm. P ■
Woolwortb Bdg;., Ni

Cable: Pertusola.

MINING AND SCIENTIFIC PRESS

July 4. 1914

PROFESSIONAL DIRECTORY

REID, Walter L.,

ipt, Smuggler-Union Cyanide Plant.
Testa onstTUCtlon.

J' it Box 171, Tellurlde, I

SEARS, Stanley C,

Minliiu I iunlnftr.
Reports. Consultation and Management.

70S Walker Hank Building.
Sail Lake City, I'lab. Usual Codes.

STANFORD, Richard B.,

Mining Engineer.
906. Metropolitan Bank Bdg.,
New Orleans. La,
3tanford. Code Bedford McNeill

RICHARDS, Robert H.,

Ore Dre»*lng.

Make careful concentrating tests for the
_: ..f Mow sheets for dlfficull ores.
t [> i Boy Is ton St., Boston. Mass.

SHALER, Millard K.,

Mining Geologlel nnd Encioerr.

v Montague du Pare,

Brussels, Belgium.

STEBBINS, Elwyn W.,

Ml nine I ' ii ii In '-«• r.
Mills Bdg , San Fi

RICKARD, Edgar,

u
The Ml nlng Magazine.

i .ondon, E.C

Ollgoclasi i '■>.!. i:..,n..r.i mnvjii.

SHARPLESS, Fredk. F.,

Consulting Mining: Engineer.

53 Broadwav, New York.
Cable: Eresharp Code: McNeill

STEPHENSON, Geo. E.

Mining Engineer.

'. E. T. McCarthy,
10, Austin Friars. London. E.C.

RICKARD, Forbes,

Mining Engineer.

Equitable Building. Denver.

SHAW, S. P.,

Mining Engineer.
136 Liberty St., New York City.

STEVENS, Blarney,

Mining Engineer.

Temascaltepec, Est. de Mexico,

Mexico

c < Lane Rincon Mines, Inc.

RICKARD, T. A.,

or, The Mining Magazl

Salisbury House, London, E.C.

No professional work undertaken.

Cable :0 ■ ...h- Bedford McNeill.

SIMONDS,

Ernest H.,

Metallurgical

lOngl

neer.

1105 Crock

-r Bdg..

San

Franc

SCO.

STINES, Norman C, „2JK2k

Polefskoy, Mramorskaya station,
Perm Government, Kussla.
Cable: Norxnstlnes. Bkaterlnberg

Coile: Bedford McNeill tlnnh editions.)

RICKETTS & BANKS,

Mining Engineer** nnd Metallurgists.

BO Maiden Lane, New York.
Complete ore testing plant.

SIMONDS & BURNS,

Mining Engineer.

Madison Ave.. New York.

STOCKFELD, G. A,

* on -ill line Engineer.

Egypt Bouse, S6-38 New Broad St,

London. E.C

RIORDAN, D. M.,

< oiiMiiltlng Engineer.

Mining Investigations carefully made
spons I Intending Investors.
ltjr. Broadway, New fork.

SIMPSON, W. E.,

Mining nnd Metiillnrgirnl Engineer.

Fundlclon de Los Arcos. Toluca,

Mexico.

I lable: Metalmlner. Code: Bed. McNeill.

STORMS, William H.,

Mining tlrul.itUi nnd Engineer.

Mining Methods a Specialtv.
8487 Hllgard Ave., Berkeley, Cal.

ROGERS, Allen Hastings,

CuuMiiltlng Mining Engineer.

B01 Devonshire St., Boston, Mass
:i Broadway, Ne* fork, N. v.
A theaters.

SIZER, F. L.,

Consulting Mining Engineer.

916 First Nat'l Bank Bdg.,
San Francisco.

STRAUSS, Lester W.,

Knuiaeer ol Mlu«M*.

Casllla iiTi. Valparaiso, Chile, s. A.
' !able : Lestra-Valpa pa tso

Code: Bedford McNeill.

ROGERS, Edwin M.,

< oOMultinic Mlnlnic r.itulueer.

::j Broadway, New York.
Cable: Emrog. Code: Bedford McNeill

SMITH, Howard D.,

M in In u Engineer.
Kohl Bdg., San Fran I

Cable: Dlorlte.

Code: Western L'nion.

SUSSMAN, Otto,

Mining Engineer.

til Broadway, New York.

ROMER,

p.,

Cab

Sophli

le: Rei

Ml
Pll

Illnie 1 -Ulif neer.

in. Amsterdam, Holland.
ode: A B C. 5th Ed.

SMITH, J. D. Audley,

Mlnlnu Knislneer.

P. O. Box 1357. 9, Bridge St..

Sydney, Australia.

Cable: Jadunand. All Codes.

SYMMES, Whitman,

Mining Englueer.

Mgr. Mexican Mine, etc.

Virginia City, Nevada.

ROSS,

McM

Mini

Hill Vi

nniiltlng

Eng

neer.

v o .

Club.

Stockton

Cal

fornia.

SMITH,

-, Lenski
Cable: Re

Reuben Edward,

Mlnlnic r.nKim-er.
[e < : M < '".. Bodaibo. Si
smith, care Lenzoto.

Code: McNeill.

..•ria.
1908.

TALMAGE, Sterling B.,

Mining Geologlxt nnd Engineer.
Geologic Maps, Examinations, Reports.
Vermont Bil«.,
Salt Lake City. Utah.

ROTHERHAM, G. H.,

MetullurgiNt.

City Deep, Ltd.
O. Box 1111, Johannesburg.
South Africa.

SMITH & ZIESMER,

(I'Tankitn \\ . Smith, Ralp

i A.

Ziesmer.)

< niiMi Ii hit Mining Englneern.

Work In Mexico " *

nee

nit. v.

Blsbee, Ariz, Code: Be

tin

d McNeill.

Bainbr

TEALE, J.

dge,
W.,

Se\

mour A

Co.

Sallsl
Cable: Has

uri

era

nlng
Ho

ise,

glneer.

London, E.C.

I'-sual Codes.

ROYER, Frank W.,

Mining Englueer.
I Realty Bdg., Los Angeles,
and Apartado 805 Mexico, D. F.

Bedford McNeill.

SPILSBURY, E. Gybbon,

Consulting, Mining iniil Metnllurgleal
Engineer.

45 Broadw: New York.
Cable: Spilroe.

TEN OEVER, Uneko,

Mining Engineer.

Mexican Mines and Lands.

Box -179, Blsbee. Arizona.

Cable: Uneko. Code: Bedford McNeill.

SCOTT, Robert,

Inventor nnd Builder of the
SeOfl (fculelEsIll er Eurnace.
S. Eleventh St .
San Jose, California.

SPURR

J. Edward,

Mining

(•eologlMt.

Bull!

Philadelphia

Pa.

Ton opali

'oinpany of

■

THOMAS, E. G,

70u L'nion Oil Bdg.. Los Angeles.
1 1 1 Broadway, New York.
5 London Wall Bdgs.. London, E.C.
' lode Bedford McNeill.

.lul.t 1 1914

MIMNi. AM) 91 II M II It l-KI SS

PROFESSIONAL DIRECTORY

THOMAS. H

M..

MI..I.... 1

MKlMrrr.

< chli

.■

■

TWEDDY. Geo. A.,

MI..I... Kailirrr.

III

W1LM0T. H C,

HIi.Imk t-:«alnr»r.

'. Itll. lux I'"
P I

THOMAS, Kirby.

Ml»lnn KMglurrr.

1 Expli

lion ol Mining

43 I N«'W Voi k

TYRRELL. J B.,

>llMln K i:u|tl«*-rr .....I <,nilu B Ul.

lion Llfi Bd

Tol ■ la

fnl.lt- T>ir. II UsualCodel

WINCHELL, Horace V ,

I on*, ill I Inn MIiiIi.h l.ruli. H U|,

win.

THORNE. W. E..

%1 I nl lit. KuKlurrr.

4*1- London, ES C

Cod v

VALLENTINE, E. J.,

MlnlMjt liiKhttrr.
in Tin Co., In) an. Uppei Pol ,ik,

'•■'■!■ M. n. -ill (both Millions)

WINWOOD, Job H.,

MImI.ik CnKliirrr.

810-11 Continental lim.k i
Ball Lake Clly riiii,
Codi r.. .ii.., .1 M

THURSTON. E

Coppee,

Malaa

l:nxlnrrr.

Of A

Pinners Hall

AiiMIn I'll

t is.

Lot .i.

Hi, B.C.

von

BERNEWITZ,

w.,

tlt'tiilliira

i.i.

ISO Mark*

Ban FranolM

• ■. '

•ill

WISEMAN,

Philip,

Mta

■g 1 ntlii.ir

1210 ll.illlnu.u

..rlli B

1....

lis.

I ■,,,!. - \\ . -

lorn Union

in.

Cablo: Fllwlsei

nt it.

TIMMONS. Colin.

Minnie. 1 iik I m-rr.

i lunton, » Colorado.

VON ROSENBERG, Leo,

1 iiiiniiIiIiik Mlnlnu I : (lu I iM-

I-' Bl Iw .. . N. W V.nl;

* table: Porphyry.

WOLF,

.in:

KOI

N..

Hi Ai

ii'1'lcnn

Bxi

Ion

11, .Ii i

!o,

Mill-

Idg.

Sim

. v. ,,

TITCOMB, H. A.,

• my House,

London. B.C.
Cable; Tltcomb. Codi

(two

...I McNeil]
idltlons).

WARTENWEILER, Otto & Co.,
BasTlaeera and Contractors.

Mining and Mctallui shea) Plants,
Industrial Equipment and Installs!
Vim Nuye n.ii.-,. Los Angeles.

WORCESTER, S. A.,

ii . . l.a .. I. :. I MlnlnK I l.^lli" ■ i

Mill T.sis. Design, Constructing, Man-
agement. Spools! ore-handling PI

Victor. Col i i

TOLL, Rensselaer H.,

ilinii. i_ Kniclnrrr.

110 Boston li.lt-.. Denver.
Cabli Rentoll Code Bedford McNeill.

WEATHERBE, DArcy,

Mli.liiU I :nuln.-i-r.

ii Copthall Ave., London, B.C.
Cablc:Natc-hekoo. Code McNeill, both i

WRIGHT, Charles Will,

M liiinii Kiitcliirrr.

CogurtOflUt Sa rdln la, l taly,
Cable: Wright, Arbua. Codi :Bed.McKellL

TOLMAN, Cyrus Fisher, Jr.,

COaWllitlsf Be tin If (.roliiKlst.

P. ' i. Addi • a
st an fonl University, Cal.

WEBBER, Morton,

^i i in- \ n Inn f ion n ml i >i-\ elopnseni
: I i '..i tland St, New fork.
*iii»le: Orebacka.

WRIGHT, Louis A„

II in I ni; Knuliifrr.

General I development Co.,
51 Broadway, New fork.

Codi- Bedford McNeill.

TURNER, H. W.,

Mlnlnu I :niiiii'-i-r.

209-21(1 Ai.i.vka Commercial Bdg..

San Francisco.

Cable: Latlte. Code Bedford McNeill.

TURNER, Scott,

Hlnfaag

ii- i il' ■!■ r-

Tromso,

An t i-.'i-nal.

N'orwav.

Code: McNeill, isos.

WELCH, R. Kemp,

ConMiillliiK

Miniiic nnil >Iet-lui nlt-nl

K UK liu

IT.

Examinations, Repoi ts,

develop

nent.

Fort Bldwell. <

WESTERVELT, William Young,

Consulting >i i ii I ii u Engineer*

IT Madison Ave, (Madison Square East)

N. w York,
Cable: Casewest Code: Bedford McNeill.

YEATMAN, Pope,

Mlnlnir Engineer.

iGo Broadway, New York.
Jable: Ekona Code. Bedford McNeill,

A GUIDE TO TECHNICAL WRITING

By T.

A. RlCKAKD

INI. Pages.

$1.00 Postpaid

Mining and

KCIKNTIFIC PKKMS

^ SCHOOLS AND COLLEGES ^

A. VAN DER NAILLEN SCHOOL S1 " "o.^Vci*""*

Established In I vt ^T ,

12 months course In PRACTICAL ENGINEERING.

Mining, Mechanical, Civil or Electrical
Send for catalogue.

HEALD S

SCHOOL OF

MINES

Bstab 1S63.

Van

Kens

\* v. mill

*«Ht St.i Nan

l-'-aiii-l.cii.

PR \<"l

!< VI.

TWO ye

tit i in itsi:

IN MINING.

Special worl

may

be taken

in Assaying,

Cyanldlng, Metal-

lurgy, in

ifting

Surveying and Genei

al engineering.

i ... i.ii

i nil ill 1

on iitlilrrnN

c. E. iii:ai.d. ahki. sup).

MICHIGAN

COLLEGE

MINES

Located In

the L

ake Sup

n lor

mining district.

Mines

ind

mills acce

sslble

for coll

work. For

Year

Book .

.nd

Booklet o

f VI

■ws. address

President

Secret:

ry,

1 [oughton,

.Mill

igan.

UNIVERSITY OF ILLINOIS

Department of Mining Engineering. Complete ore con-
centration, coal washing, drilling and blasting labora-
tories Just completed. Fully equipped mine rescue sta-
tion. Address Dept. Mining Huglm-i-ring, Crhana. HHimis.

MISSOURI SCHOOL OF MINES

a department of the University of Missouri. Established
in 1871. Four-year courses In Mining Engineering, Met-
allurgy, Civil Engineering. General Sri.-no-.

Address: Missouri School Of Mim-s. Holla. Missouri

UNIVERSITY OF WASHINGTON

College oi' Hlnea, Seattle, w«mIiIuk<oii.

i .i.i I ami Metal Mining, Ore Dressing, Metallurgy.
Special Courses for Mining Men, January i" April.

MINING AND SCIENTIFIC PRESS

July 4. 1!U4

ASSAYERS, CHEMISTS AND ORE TESTING WORKS

ILASKA.

I. M
■ II II OHM \.

California Ore Test-
In g Co.

■"< k & Payne
Walter L.

Abbott A.
Irving & Co.. James.

Luckhardt Co., C \
Mlller-Farlsh
Peres, Richard A
Smith, Emery & Co.

Wllke. R. M.

COLOR VDO.

Burton, Howard E.

[■'rost. Oscar J.
. Is. .1. \V.
new ji:rsev.
. I .over Labora-
tory

v e, h. w.

NEW YORK.

Ledoux ,t Co., Inc.

n:\\si i.\ vm i.
Ogden, John.
Petrologies

TEX tv

Crltchett ft Ferguson.

I TAIL

Bardwell, Alonzo F.

.wan Co.
< ieneral Engineering

Co . The.
■ Ifflcer ft Co., R. H.
Union Assav office, Inc.

El ROPE.
Griffith ft Co., Daniel C.

ATKIN & McRAE,

mlt and Meta llui .
Control nnil Umpire kaoayv.

Can i Ihemlsts.

610 South Olive St.. Los Angeles, Cal.

CALIFORNIA ORE TESTING CO., inders e. u.mind, Mnon^r.

THE MOST COMPLETE ORE TESTING PLANT IN THE WEST.

All t.-sis conducted under experle 6 supervision Write for booklel

Office 630 Sacramento St Tee ting Plant KM Baj Si ■- : 1 1 I i ineleco

BARDWELL, Alonzo F.,

(Successor to Bet ties & Bardwell.)

4 iiMtom Assnyer and Chemist.
W, Temple St, Salt Lake, Utah.

< ii-.- S I ii [ > [ ■ . ■ r .^ ' Ak.'IU.

BAVERSTOCK & PAYNE,

IniliiNtrlnl Cbemlats anil AMHayem,

| u ! CI Analyses of Ores.

Minerals, and All < irganic Materials.
823 W. First St , Los Angeles. Cal.

GENERAL ENGINEERING CO., THE, ft m. .m.i.ow. it.»i.i..»..

CONSULTING ENGINEERS.

159 Plerpont Avenue. Salt Lake City. Utah.
Design and Erection of all Classes of Reduction Plants.
ORES TESTED IN SMALL OR CARLOAD LOTS BY AMALGAMATION, CON-
CENTRATION, c'VAXIDATTON. MAGNETIC SEPARATION, MACQUISTEN TUBES.
s. i,. I for our ORE TESTING BULLETIN.

BIRD-COWAN CO.,

< Charles S < lowan, Manager.

CiiMtom AMMiiyiTM nnil Chemists.

Agents for Ore Shippers.

160 S. \Y. T.-mpi- St . *:>][. hak-, Utah.

GEORGE A. JAMES CO., THE,

\nvivi;ks AM) CHEMISTS.

Supervision of Ore Sampling, Technical Analysis, Cement Testing.
No. 28-32 Belden Place (off Bush near Kearney), San Francisco.

BURTON, Howard E., "SSiX*

605 Harrison Ave.. Leadvtlle. Colorado.

b: < iold, 50c; Gold and

Gold, Silver and Lead, $1;

-■■ ■. ei mil Copper, (1.50.

LEDOUX & CO., Inc.,

ASSVYRRS, CHEMISTS AND METALLURGISTS.

Independent samplers at the port of New York,
resentattves at all Refineries and Smelters <m Atlantic s
Office and Laboratory: 99 John S t r ■ - ■ ■ t . New York

CRITCHETT & FERGUSON,

\ Mayers and Chemlata*

El Pas... T

tnd Controls a Specialty.

DRURY,

, in

ii :i

kessij

Onlce.

■■.'ii

•ba

iks, Al

i .-- k - 1

ELY, E., Dover Laboratory,

Aaaayer and Chemlat. Fees: Gold, 60c;
Silver, ISc Copper, si. Iron Ores. Iron,
$1: Phosphorus, $1.50; Sulphur, $1.75.

■ i : McFs I i.i.n SI . i "-■'. er, X. J.

FROST, Oscar J.,

Annhjit.

511 18th St.. Denver.

GIBSON, Walter L.,

Successor to

I :i I Uriiil n ANNIiylDK Co.,

Aaeay Office anil Analytical Laboratory,

BchOOl "f Vf*iHiiy|ng.

824 Washington St.. Oakland.
Phone S929.
says and supervision of sam-
pling Working tests of ores, analyses.
Investigations of metallurgical and

leal processes.
Professor L. Falkenau, General Man-
gi r ami Consulting Specialist.

C. A. LUCKHARDT CO.,

(A. H. Ward, Harold C. Ward.)

ASSAYERS AND CHEMISTS.

Sampling of Ores at Smelters. 53 Stevenson St., San Francisco.

Telephone. Kearny f.951.

MILLER-FARISH COMPANY, wii.liam p. miller, M K r.

KStVKRS, CHEMISTS AND METALLURGISTS.

Ores Tested to Determine Best Method of Treatment. Mills Designed and Installed.
532 Commercial St.. San Francisco. Cal. Tel. Sutter 5107.

SMITH. EMERY & CO., lOre Teatlng Plant, boa A "tele™. I

INDEPENDENT CONTROL AND UMPIRE ASSAYERS.

Represent Shippers at Smelters. Test Ores, and Design Mills.
651 Howard Street, San Francisco. 215 So. Los Angeles Street. Los Angeles,

GRIFFITH & CO., Daniel C,

Mwayen, MetnllurKUtpl nnd Samplers.

8, Victoria Avenue. Blshopgate,

London. EC.

Cable: Gryffydd. Usual Codes.

IRVING & CO., James,

Gold Refiners nod AMHayem.

107 X. Spring St.. Los Angeels, Cal.
Cash for Bullion and Ores.

OFFICER & CO., R. H.,

Assnyers ami Chemists.

169 South West Temple Street,
Salt Lake City, Utah.

PETROLOGICAL LABORATORY

\\ . Hnrold Tomllnson,

Swathmore, Pa.

Petrographlo Work. Rock sections made.

Mis'Tosoopic examinations of rocks.

RICHARDS, J. W.,

A.H.snyer ami Chemist.

111S Nineteenth St.. Denver,
-nippers' Agent. Write for terms.

Rcpr.-sontativt-s at all Colorado smelters.

UNION ASSAY OFFICE, Inc.,

Assay era and Chemists.

Box 1446, Salt Lake City. Utah.

HANKS, Abbot A.,

Chemlat and

Aaaayer.

Established

1S66.

Saci uaento St.,

Sun Francisco.

!■•»] and Umpire Assays, Supervision

of Sampling at

Smelters.

Cable: Hfanx. Code: W

U. and Bed. McN.

OGDEN, John, Metallurgist, Chemist.

(16 yrs. Mgr. Ogden Assay Co., Denver.)

Specialty: Platinum, Assays. Analyses.

Rich Ores and Bullion Bought.

906 Filbert St.. Philadelphia. Pa.

PEREZ, Richard A.,

AMNnycr, Chemlnt and Metallurgist.

(Established 1895.)
12'J N\ Main Street, Los Angeles. Cal.

YOUNG, H.

}

Chemist

mil

Ansnyer

Prompt

attention

samples

mall.

Box

S4S

K-

no, Xev.

WILKE, R. M.,

Mineralogist.

Minerals and Rock Specimens Bought

and Sold. Determinations Made.

Box 812, Palo Alto. California.

. fit

MIMV. \M> » II Mil I- PK

THE BRAIN PLANETARY PULVERIZER

is simple in construction and just as easily operated as the regular
Braun Pulverizer. Its superiority is due to the simple planetary
movement imparted to the disc which adapts it for pulverizing

All Classes of Material

Whether-Hard-Soft- Talcy

It is especially recommended for labo-
ratories where a wide range of material is
ground and tested.

Will be found the most economical labor
saving device in the laboratory, as it entirely
eliminates the buckboard.

PATCNl AP LHO ■ON

Easily regulated for delivering any mesh product.

Send lor Descriptive Matter.

WRITE YOUR
NEAREST HOUSE

SAN FRANCISCO. U. S. A.

BRAUN CORPORATION

LOS ANGELES. U.S.A.

If you figure the price of a drill on the footage it will Rive and the length of time that
it will last, or its power of consumption, then the

BUSY BEE HAMMER DRILLS

are the cheapest you can buy. You will find that they will give you real economy no matter
what the job. Their uses are numberless. Work in wet or dry rock — anywhere. There's a
minimum expense for labor, power and repairs. Send for our bulletin now.

McKiernan -Terry Drill Co.

232 BROADWAY

NEW YORK, N. Y.

IANADIAN REPRESENTATIVES, Canadian Allls-Clialmers. Ltd.. Toronto. Ont.
Itock DrllUi Core Drills, I'll*- Hammers, Ailu Jacks.

75%

3 out of every 4 CENTRAL STATIONS operating our

DIESEL ENGINES

have bought additional DIESEL units; and the amount of horse-power bought on reorder, by
this 75%. is 155% of that acquired on first order.

One, out of every four, has made 3 distinct purchases, each in a different year; and more than half reordered
after 5 years of successful DIESEL operation.

1C years of DIESEL building enables this company to offer an engine admirably adapted
J to Central Station requirements — Regulation, Reliability, Economy.

BUSCH-SULZER BROS.-DIESEL ENGINE COMPANY

ST. LOUIS U. S. A.

MINING AND SCIENTIFIC PRESS

July 4. liiH

United States Smelting,

Refining and Mining Co.

55 Congress St., Boston, Mass.

NEEDLES MIKING AND SMELTING COMPANY

Custom Lead and Copper Smelters and Custom
Lead and Zinc Concentrator at Needles, Cal. Ad-
dress Needles Cal., and 908 W. P. Storey Building.
Los Angeles, Cal.

MAMMOTH COPPER MINING COMPANY

Custom Copper Smelter at Kennett. Cal. Address
Kennett. Cat.

UNITED STATES SMELTING COMPANY

Custom Lead and Copper Smelters at Mldvale. Utah.
Address, Salt Lake City. Utah.

SOLD ROAD MINES COMPANY

Custom Cyanide Mill at Gold Road, Arizona.

UNITED STATES METAL REPINING COMPANY

Custom Copper Smelter and Electrolytic Copper

Electrolytic Lead Re-
Address. 42 Broadway.

Refinery at Chrome. N. J.
finery at Grasselli. Ind.
New York City, N. Y.

CIA. DE REAL DEL MONTE

Mines and Mills at Pachuca and Real del Monte
Address, Pachuca. Hidalgo, Mexico.

UNITED STATES SMELTING. REFINING i MINING
EXPLORATION CO.
For Examination and Purchase of Metal Mines
Address 55 Congress St., Boston, Mass.; 42 Broad-
way, New York, N. Y.; W. P. Story Bldg., Los
Angeles. Cal.; Newhouse Bldg., Salt Lake City.
Utah: Edlflclo La Mutua 411. Mexico, D. F.

INTERNATIONAL METALS SELLING COMPANY
42 Broadway. New York City. N. Y.

Bayers of

ORES, MATTE AND FURNACE PRODUCTS

Refiners of

BLISTER COPPER AND LEAD BULLION

The Consolidated Mining

and Smelting Co., of

Canada, Ltd.

Smelters and Refiners. Purchasers of All
Classes of Ores. Producers of Fine Gold
and Silver, Base Bullion, Copper Matte,
Pig Lead, Lead Pipe, Bluestone and Elec-
trolytic Bearing Metal.

Offices Smelting and Refining Dept., Trail, British Columbia

The American Metal Company, Ltd.

61 BROADWAY, NEW YORK

Branch Offices:

St. Louis. Mo.
1411 Third National Building

Ores and Mattes

Denver. Colo.
825 A. C. Foster Building

Copper and Lead Bullion

Mexican Representatives: Companla de Mlnerales y Metales
Mexico City and Monterrey.

SELBY SMELTING & LEAD GO.

SMELTERS AND REFINERS

Buyers of
Gold, Silver and Lead Ores, Concentrates, Cyanide
Product, etc., Lead Bullion. Dore Bars, Gold Dust

and Bullion.

CONSIGN ALL SHIPMENTS TO SELBY, CAL.

Assaying of hand samples has been discontinued.
Oeneral Offices:

Merchants Exchange Bdg. San Francisco

Eighth Floor

International Smelting Company

New York Office : 42 Broadway

Purchasers of

Gold, Silver, Copper and Lead Ores

SMELTING WORKS — International. Utah

REFINERIES:

Raritan Copper Works, Perth Amboy, N. J.

International Lead Refining Company, East Chicago. Indiana

ORE PURCHASING DEPARTMENT:
621 Kearns Building. Salt Lake City. Utah

BRANCHES: 612 Paulsen Building. Spokane, Washington

L. Vogelstein & Co.

42 Broadway, New York

Oeneral Agents

United States Metals Refining Co.

Chrome, N. J., and Graselli, Ind.

Electrolytic Copper and Lead Refiners

Sole Agents for

Spelter of American Zinc Lead & Smelting Co.

Smeltsrfl at Caney, Kan., ami Dearing. Kan.

BEER, SONDHEIMER Ct CO.

FRANKFORT-ON-MAIN. GERMANY
BtiyCrS Of ZinC Ores Carbonates, Sulphides and Mixed

— Ores, Copper Ores, Copper Matte,

Copper Bullion, Lead Bullion, Lead Ores, Antimony Ores, Iron

and Manganese Ores.

Sellers °^ Spelter, Antimony, Antimonial Lead, Arsenic,

Zinc Dust.

Own Smelting and Running Works. New York Office, 61 Broadway

WILDBERG BROS.

Slneltera, Refiners and Purchasers of

Gold and Silver Ores, Gold Dust, Bullion
and Native Platinum

Producers of Proof Gold and Silver for Aasayera
OFFICE 410-419 PACIFIC BDG. SAX FRAXCISCO.

ATKINS, KROLL & CO. SAN FRANCISCO

Import Merchants.

DANISH FLINT PEBBLES. SILEX LINING. CYANIDI.

QUICKSILVER. MINING CANDLES. FIREBRICK.

BORTS AND CARBONS. BLACKSMITH COAL. COKE.

IMPORTED FUSE. SCHEELITE CONCENTRATES, T*%.

SUPERIOR QUALITY ZINC DUST.

Stocks Carried.

Buyers of Quicksilver and Platinum, also Ores of Antimony

Bismuth, Molybdenum. Tungsten, Vanadium, Zinc. etc.

\!l\l\i. \M> m II Mil |t |'KI SS

'iiiiiiiiiiiiiiiiiiiiiiiiiiiiiniiiiiiiir 1

Hyatt Roller

BEARIljULWHEELS

Hull Roller
B*«nag Cowp»o

—-■■<—

1 1 i /

IU4 «i.k.,.. A.. .
Ck„.,.. II.

111111111111111

THKVlTt MADE TO MEASURE

Put man Boots 6 Shoes

Goon like a qlove*'"' fit all over.

I'uttnsn Boot* arc the oldest and best known boots for

Civil and Mining Lngineers. They aie sold all over the

world and '»»»'«■ lustly earned the slovan "The World'*

Standard.'* Mnde-to measure, water proofed or not.

•njr weight of uppers or so!es. '.ll heights, a variety

ai styles and price* that you will find satisfactory.

Made-to-Measure Shoes

Putman Shoes have a perfect fit. the best of everything in
quality, style that is "up-to-the-minute" and that custom*
made-individuality so much sought in all wearing apparel.
Lace. Button or Oxford styles. Black and all the popular
shades of Tan Leathers. Ever> thing from the lightest
Vici Kid to Heavy English "Hiking" Shoes.

Our FREE CATALOGUE is sent upon request. It
is different from any other and will interest you.
Self measurement blanks and full instructions free

PUTMAN BOOT A SHOE CO.
118 5th St. N. E. Minneapolis, Minn.

MARATHON MILL

GUARANTEED TO BEAT All
OTHERS. Really grinds twlcfl

as much coarse bo four

.1- much I'm

B on conditiom \

Inch to 200 Mesh Discharges.

NEW GOLD SAVING HEADS.

Guaranteed to beat all others

gnld Inside the mill.

\\rit<' for grinding tests

'Patented ftII,i particulars,

ROCK CRUSHERS. MINING AND MILLING MACHINERY

JOHNSON ENGINEERING WORKS

FIRST NATIONAL BANK BUILDING. CHICAGO.!!!. S. A.

E. F. Hutton & Co.

Bonds

Members New York Slock Exchange

490 California St., San Francisco

J. C. Wilson & Co.

Member New York Stock Exchange. New York Cotton

Exchange, Chicago Board of Trade,

The Stock and Bond Exchange, San Francisco

Haln Office I Mill* IIiIk., Sun FranuUvu.

Branch Offices:

I .os Angeles, San Diego, Coronado. Cal. Portland, Ore.

Seattle, Wash.

Private Wire, Ohlongro, New York.

LIMA LOCOMOTIVES

UUf .hop tan .■ I. tlicmiii.'iiu lrii.,,1. well OmnlMd.
nm! km* lh<> i.ii.-»i tiH>lt and appliance. The rt-.nii I.
that oui loooraollTM aro aa noar |*-rfr. 1 a. 1, |.<*alt>lt..

M mi 1 OR 1 \ 1 AJLOG

LIMA LOCOMOTIVE CORPORATION
III \Y. SECOND ST., LIMA, O.

... h M .. s, « York.

WATT STEEL CARS

For MINES
and SMtL'lERS

"ur catalog shows
in ;i n y In teres tin g
types. Wrile fur it
today.

The Watt Mining
Car Wheel Co

Barnesvllle, Ohio

Denver: Undrooth. Shubui

a Co.
Mm Francisco: n. D. Phi Ipi

E IN HEART OF CITY

HOTEL SAVOY

SEATTLE

"Twelve Stories
of Solid Comfort"

In the centre of things-
theatres and stores on both
sides. Building absolutely
fireproof — concrete, steel
and marble.

European Plan — $1 per day up
With Baths — $2 per day up

WANTED — .SECOND-HAND A>l ALAGAMATING PLATES
AND QUICKSILVER. We buy precipitates, amalgam, fine
and base bullion, scrap platinum, high grade gold and silver
ores and material containing the precious metals In any
amount, form, or condition. Send details or sample and we
will nuote prices.

THE METALS BUYING AND REFINING CO.,
210 Ban FrunclNCO St., El TaHO, Texan.

references: First National Bank, Mine & Smelter Supply
Co., El Paso.

Great Western Smelting &
Refining Company

Spear and Folsom St.. San Francisco.

Babbitt Metal for all kinds of service requirements.
We buy all classes of scrap metal.

MINING AND SCIENTIFIC PRESS

July 4. 1!)H

LOCOMOTIVES

AND CARS

/or Mines, Smelters, etc.
Electric Cars

Switches. Froes. and Equipment.

THE ATLAS CAR 6 MFG. CO.

DEPT. K, CLEVELAND, OHIO

iCm0nrti JBriliUtg dfo.

PLACER PROSPECTING AND EXAMINATION WORK

WATER WELL8 DRILLED

BALBOA BLDG.

8AN FRANCISCO, CAL.

BLAKE, MOFFIT £ TOWNE

DEALERS IN PAPER

37 TO 45 FIRST STREET, SAN FRANCISCO. CAL.
BRANCH HOUSES IN LOS ANGELES AND PORTLAND

GOLD DREDGES

Extensive Alaska and California Experience.

UNION CONSTRUCTION CO.

H. G. PEAKE 604 Mission St.. San Francisco. Cal. W. W. JOHNSON

Mining Filter
Presses

WM. l PERU 8 CO.

CHICAGO, D. S. A.
TORONTO, CANADA

TRAMWAYS

For all transportation purposes.
Twenty-five years' practical experience.

PAINTER TRAMWAY CO., of San Francisco

305 FIHST STREET. SAN FRANCISCO

TICrn MANGANESE

I lO^VJ STEEL CASTINGS

FOR SEVERE SERVICE
TAYLOR-WHARTON IRON & STEEL CO.

High Bridge, New Jersey

lErHANi brand THE PHOSPHOR BRONZE SMELTING GO

3200 WASHINGTON AVENUE. PHILADELPHIA. PA.

ELEPHANT BRAND 'SXJ/AJ8L&'

INGOTS. CASTINGS. WIRE. SHCETS. RODS Etc.

yrffllV -DELTA METAL -

-LS-i. IN t?«RS FOR FORGING AND FINISHED RODS

... ntrc ncn.u.. -_. .... .

Frenier's Spiral Pump

THE MOST DURABLE FOR

SUMES, TAILINGS, BATTERY SANDS, ETC

AGENTS
AUtl I hftlmtTs ro. Stearns RoKtT Mfu. Co.

(.'hirnitii. 111. Denver. Colo.

Harrt'ti. Kifkiirfl A UoCone, San KtancIaoo.Cal.

Prank R. 1'errot. Perth, W. Australia.
FRENIER & SON. Rutland, VI.

ALBERGER MINE PUMPS

fr%

With' ent Lfuga) Pumps, whether of theTur-
bln> or Volute Type, the name of \)' erger

is a guarantee of max inn i in service and niin-
iinnin operating expense. Write for Bulletins.
ALBERGEB PUMP AND CONDENSER COMPANY

140 Cedar Street. New York
Atlanta Boston Chicago St. Louis

PLACER GOLD AND SUCTION DREDGES

YUBA "BALL TREAD" TRACTORS
YUBA CENTRIFUGAL PUMPS

We represent the Bucyrus Company for Placer Dredges
on the Pacific Coast, Alaska and the Orient.

THE YUBA CONSTRUCTION CO.

WORKS : MirysvUlo, Cat

SALES OFFICE: 433 Calliornla Su San Francisco

REDWOOD TANKS

FOR

Mining and Milling Plants

Long Lite and other SuperiorQualities make
Redwood the Best Lumber for Tank Purposes.

Address Dept. T. REDWOOD MANUFACTURERS' CO.
811 Kohl Bldgr., San Francisco

Mining Engineers' Examination and Report Book

By CHARLES JANIN

In Two Parts $2.50 Postpaid

DART I is a handbook covering examination of and reporting upon mines
1 and mining property. Part II is a skeleton report, serving three pur-
poses: First an outline of a model report; Second, a field notebook; or
Third, a blank form on which the final report may be submitted.

Published and for sale by the

Ml!?!NG AND SCIENTIFIC PRK33, 420 MARKET ST., SAN FkaM'imm

RIBLET TRAMWAYS

Automatic, High Speed, Lock Coil Track Cables, Railroad
Type Trucks, Pony Trams for Light Tonnage.

RIBLET TRAMWAY CO.

SPOKANE, WASH. NELSON, B. C.

DIAMOND DRILLS

Hand Power, Horse Power, Gaso'ine, Steam, Air
and Ele?tricity. Complete line. Send for catalog.

STANDARD DIAMOND DRILL COMPANY

745 First National Bank Bdg., CHICAGO, ILL.

BACON v FARREL

ORE fr ROCK

CRUSHING x WORLD KNOWN

ROLLS-CRUSHERS

. l'lll

MINIV. \\n SCIEN1 II II I'KI SS

A. LI

It \

. HOP*
All PURPOSE

A SONS ROT!

I . I 1)1 IS. •'(

^ I »•• !■» n Id,,, r ■

Don't Buy a Gold Brick!

Buy h Pierce \nuUgunmtor anil muke poui own gold
brink* hricka thai you o&n rash, too.

Write to-day for
Catalogue No. 10.

L. S. PIERCE

I11S Broadway

DENVER.
COLO.

I). S. A.

Pierce's Amalgamator is only a common-sense scheme to
accomplish the complete recovery of the Hour and heavy
rusty gold in your ore and to save all losses in quicksilver.

Pitch Into Us

whenever you wanl a new
gear or an old one dupli-
cated right quick, W<
geared up for Past, accurate cutting and run all

the time. Vou save tune, L'<t u. I gears and real

service if you will pitch Into us fur
[fa

gears.

your lead '

Pac if ic Gear & Tool Works *J

1035 Folsom St., San Francisco, Cal. tyl

"The Coupling That

Never Blow* Off."

rhfl baWl mill ObcapMt coup-
ling made for connecting air
und steam hose to rOOk drill*.
All parta are standard sin und
will Interchange with parta of
<ither makes.
Made to lit all sizes of hose

V to Zhi" Inclusive.
Will not Injure tube or cover
of hose and a channeled lip on
end <>r item prevents loss of
washer — exclusive feature of
<>ur coupling.

Stock carried In Chicago, St LouIb.

Denver, Bait Lake City, Ban KrancUco.

I'ortlntnl. Bi attle. Bpakano. Bnfte.

Write lor catalogue and prices.

Manufactured only by

MULCONROY CO., Inc.

723 Arch Street Philadelphia. U. S. A.

FLORY HOISTS

STEAM AND ELECTRIC

are adapted for all
kinds of work. Made
In all sizes. For Mines,
Contractors. Quarries,
Dredging. Cableways,
Slate Machinery

S. FLORY MANUFACTURING CO., Bangor, Pa.

SALES AGENT
A. L. THING MACHINERY CO.. >»■ Fraud.... Cal.

ROBINS

CONVEYING

Conveying, Elevating, and Hoisting Machinery. Evory
engineer will be glad to read our bulletins on belt and other conveying
and material handling machinery. Write for copies.

Robins Conveying Belt Company

General Offices: B Park Row, New York

Chicago Office : Old Colony Bids. Spokane : United Iron Works

San Francisco: The Griffin Company. Toronto: Gulls. Percha 6c Rubber Ltd

Glasgow, N. S. : Eastern Steel Co., Ltd.

THE USE OF THE MERRILL IS NOT RESTRICTED
TO SHOP PRACTICE

This mkkheli, is Uteralli two ma-
chines; one ii portable hand or power
driven machine, the Other stationary
hand or power driven. In bolli
MEBRELL gives absolute Batl

In shop, mine, or in the Held, the
UERREL Lb best bj overj test,

We ask you to test It oul In your own
works, and at our expense.

VVr te us for full particulars ol « Das

Ire.' Trial!

(Jet catalogue B--I.

The Merrell Mfg. Co.

10 Curtis St, Toledo, Ohio

Machines carried In stock In San Fran-
cisco, Portland, Seattle, Denver

Slime and Gravel Pumps

MANGAHESE LINED SANO PUMP

Our Mniif/u/i' ,sr Sfr, t
Lined Sand Pumps
are built for extra
hard service. It Is Im-
possible for sand or
travel to grind on any
portion of the pump
other than that which
Is wholly protected
from wear by a lining
of the hardest Man-
ganese Hteel.

SEND FOR CATALOG No. 25C.

Byron Jackson Iron Works, Inc.

357-361 Market St., San Francisco, Cal.

LOS ANGELES
212 No. Los Angeles St.

WORKS
West Berkeley. Cal.

MINING AND SCIENTIFIC PRESS

.Tulv 4. 1!)U

W^^i

H ^ ' ^"Ir ;

*Jir'

it* m .

>*"

t-^*~ ' ■ i^tftfH

^^^

HOMESTAKE PIPE

Not a drop of Leakage in this 12,000-foot Installation of

Lap Welded and Spiral Riveted Steel Pipe

when 286 lbs. working pressure turned on at the Home-
stake Mining Co., Lead. S. D.

Catalog Lap-Welded Pipe (Large Diameters) and Spiral-
Riveted Pipe mailed on reQU

AMERICAN SPIRAL PIPE WORKS

SO Church St., Nciv York

CblcuKO. III.

NORDBERG

Hoisting
Engines

ffl

Air
Compressors

MACHINERY

Universally Recognized as the Best
NORDBERG MFG. CO., MILWAUKEE, WIS.

New York. \2 Broadway
Globe Aril.

Chicago. Fisher Bldg.
Butte. Electric Bldg.

RADIUM

PRODUCTION
AND USES

By SYDNEY FAWNS

00 iJiiuri. IlluHtrnted. Cloth, $1.00 postpaid.

CONTENTS: History, Appearance, and Energy of
Radium. Radio-activity of the Earth, Sea, Air, and
Sun. Description of Radium Rays and Emanations.
The Uses of Radium. The Occurrences of Radium
Ore. Extraction of Radium. Appendix. Bibliography.
Index.

For Sale l>y the

MINING AND SCIENTIFIC PRESS

420 Market St., Sao Frnncinco.

LUNKENHEIMER
CYLINDER LUBRICATORS

An exceptionally large line of
Steam. Gasoline and Air Com-
pressor Cylinder Lubricators.
Hydrostatically or mechanically
operated.

In addition to the above, the
large and complete line of
Lunkenhelmer Specialties con-
sists of Bronze and Iron Body
Bronze Mounted Globe, Angle,
Truss. Chock, Throttle, Gate. Non-
return Boiler Stop, Lever, Pop
ty, Relief, Blow-off, Screw Down Cheek Valves.
etc.; "Puddled" Semi-steel and Cast Steel Valves of
ail types; Water Columns, Gauges and other Boiler
Mountings; Whistles and Ground Key Work of all
descriptions; Injectors and Ejectors; Lubricating De-
vices, Oil Pumps, Oil and Grease Cups; Gasoline En-
gine Appliances, etc.
Your local dealer can furnish (hem; if not. write us.

A complete description of the entire line can be
had by referring to Lunkenhelmer No. 50 Catalogue.
"Write for a copy.

ui£ LUNKENHEIMER co,

"QUALITY"

Largest Manufacturers of High Grade

Engineering Specialties in the World.

CINCINNATI, OHIO.

New York — Chicago — Boston — London

"Safety first"

C-?-^r^g tyr Seal tlle J° int of tne cap
3\ byr and safety fuse and reduce

"Ps "misfires" to a minimum.

CELAKAP

should always be used when blasting
in wet or damp places.

For Triers, etc, apply to your Powder Company or Dealer.

Coast Manufacturing and Supply Company

LIVER MORE Distributers CALIFORNIA

COAST.

First Aid in Mining

By LOUIS G. IRVINE

113 puses. Fully Illustrated. Pocket •lie. Paper.
(10c. pOHtpnld.

Contains specifications for emergency stations and first-
aid equipment; rules for the treatment of wounds, bleed-
ing, burns, sprains, and fractures; methods for the trans-
port of Injured men underground; treatment of accidents
due to poisonous gases, electricity, and cyanide poison-
ing; working drawings of the Red Cross plank stretcher;
methods of artificial respiration; and other Information
of general interest. The subject-matter relates particu-
larly to metalliferous mines.

For sale by the

MINING AND SCIENTIFIC PRESS

•120 Market St., San Franclaco.

, I'M I

\1I\IV. \M> m II Mil I. PRI

Five Points ol Efficiency
< oinblned In the Powell
Hydraulic Gate Valves

l Body ■ymmetitcall

and well proportioned. MetaTdla-

IriblltCd ' ■ meet th, ni'-sl wear.

i nion bevel ground joint
connection between body
bonnet

:. Red lead or oemenl unneces-
sary to nuke II Light.

1. They have renewable White PowelUum Bronxe
Discs, ball and MM-k.-t back, Bmooth-worklng — « - 1 f -
adjusting.

:>. All working parts made to gauge and are Inter-
changeable, fasted and Inspected before shipment.

They Take Prcmure Either Way

A-kyour Tme/\Wm Powell Co.

--ENDA9LE Chgincibins SPtCIALTlES

CINCINNATI

ifevler lor
Powvlt Valve*

or write u«

Hydraulic Giants

We carry a complete
line of

Hydraulic Giants (Monitors)

Deflectors and Extra

Nozzle Tips

Write for our Illustrated Circular and
Price List

Seattle Machine Works

(INCORPORATED!

37 to 51 West Lander Street

SEATTLE, WASH.

THE LANE MILL IS
A SLOW SPEED
CHILEAN MILL

THE SLOW SPEED • operation using a v. ■

• •it, mn »■ «■» , l];il| .,„,„„„, ,,, power.

makei the com of malnti nam e
low.

rendei ■ it possible to operate
nltboul screen ■.limn-

ing this aspen

causes very little agitation,
thereby Increasing the extrac-
tion by amalgamation
—lessens danger of accidents

leading to breakage.
—Insures the delivery of a Une
and even product at a low
cost.
The Lane Mill Is made in several sizes, some of
which can be sectlonallzed for transportation on pack-
animals. Send for our new Catalog No. 7 and data
regarding work at plants where both Stamps and Lane
are operated.

LANE MILL & MACHINERY COMPANY

236-247 Douylas Building, Lo» Angeles, California

Over 100 Placer Dredges

have been designed and built by the liucyrus
Company— more placer dredging machinery
than all the manufacturers In America com-
bined have built. When you get a Bucyrus you

net an experience as old as the industry.

We a'io make all types of shovels, dredges
and dragline excavators. Send for catalogs.

New York

NVJl-l

BUCYRUS COMPANY

P. O. Box O, South Milwaukee, Wi».

Chicago

Duluth, Minn.
San Francisco

Blrmlngnam. Ala.

MINING AND SCIENTIFIC PRESS

July 4. 101-1

STAR PORTABLE
DRILLING MACHINES

Built In many sizes both traction and non-
traction, for drilling all depths to 4000 feet

Equipped For Steam, Gas or Electrical Power

For Water Wells — Oil and Gas Wells — Mineral Prospect-
ing — Railroad and Canal Excavations — Cement and
Crushed Stone Quarries — Bridge Soundings — Coal Mine
Ventilation — Irrigation, Etc.

Write for Illustrated Catalog. •

The Star Drilling Machine Company

General OHIces : Akron, Ohio

Branch Office : 2 Rector SL, New York City

Works :
Akron, Ohio — Chanute. Kansas — Portland, Ore. — Long Beach, Cat.

For All Filtering Requirements

THE KELLY

"FILTER PRESS

IS MOST EFFICIENT AND RELIABLE

Acid Proof Filters and Special
Filter Cloth for all uses.

Filter leaves entirely accessible.

Low labor costs.

Dry cakes dumped.

Especially adapted for drying
oil flotation concentrates.

Send for list of new installations and
description of our latest machines.

Kelly Filter Press Company

207 Felt Bldg.,

Salt Lake City, Utah

E. E. LUNGYVITZ, 80 Maiden Lane. NEW YORK

SAVE

TIME AND MONEY

BY USING

Blasting Machines

s 17 VERY day more blast-

.chine ■■— ' ine is being done with

electrical blasting machines.

WHY?

Because several bore holes can be fired at one
operation. Such action dislodges more mate-
rial than miny single shots.

Less drilling and loading is necessary when electrical
blasting replaces single-shot methods.

Put this new improved, powerful, strongly made Xo.
5 Blasting Machine to work. It's a time and money
saver, and lessens blasting accidents.

FOR SALE BY ELECTRICAL
SUPPLY HOUSES OR BY

Du Pont Powder Co.

Established mi
WILMINGTON, DELAWARE

You Will Make No Mistake

in equipping your Belt, Bucket, or
Pan Conveyors with the

Merrick Conveyor Weightometer

It will automatically record, in any unit desired,
the actual weight of material transported — with a
guaranteed

ACCURACY WITHIN 1%

Write today for descriptive catalog
and further particulars.

MERRICK SCALE MANUFACTURING CO.

PASSAIC, N. J.

.luU I fill

\1I\IV. \M) m II. Ml! |i 1-KI --

PELTON WHEELS

ii.n .■ bi t-n the standard drive for compressors the last
quarter century. For modern plants, the new water
saving devices and quick regulation of the present day

PELTON-DOBLE WHEEL

makes It the logical choice where reliability and economy
are the deciding features of the Installation.

are many Pel ton wheels In operation that are more.
than twenty years Old. Kurt her more, these wheels are
doing the work required <>f them with the same regu-
larity as when originally installed. Do you want this
kind >>r service? Then let us tell you more about
Pelton-Doble equipment.

The Pelton Water Wheel Company

West Street.
New York.N. Y.

2229 Harrison Street
San Francisco. Cal.

^he onl
.you can

y Roofing
afford to i

use

Chicago Pneumatic Compressors

WE HAVE THIS COMPRESSOR

in San Francisco Stock,

IN ALL SIZES

Also Single Stage Compressors, Chicago Rock
Drills, Stoping Drills and Plugger Drills.

Chicago Pneumatic Tool Co.

Address N. E. OTTERSON
71 First Street, San Francisco w

i -...- ill,- roofing prnbli ta fairly nml equarel)

-nine
ooatlng? n.i matter how Utile you pat inr sm-ii
ii ioo8ng ii n I,,-. rxprnHlvc pro|>aeluon In the

lona run In I (■ ■« >■ »,. x ,,i, r bllll fo

■■'(I repair* will amount lo more than the orig-
inal o

Itoofln :> apt naeends for all time when you uae

J-M ASBESTOS

- the last row, Being all mineral, h « < ntilni
nothing i" r..t. nm or deteriorate, in tn] wai Hi :■■
rjuln - coaling <>r graveling

baste* (torh > loll cemented, tayei <- \
Upbalt

ng l» lowor in firoi cost tl igflve,

iin or slate snd cheapor than »'l other toolings "ii iln i
■ - excellent Bn
-i \i Roofing 4 louts. packed In each roll, make absolutely
watertight seami and give the entire rool ■ handstme white
appearance J-M Roofing also oorn it In built-up fonn.

Bold direct h sour dealer can't supply you. Wenroalto
prepared t«i tarnish J-M Regal Roofing which, although low
in price, i- the highest grade rubber ro tflng "ii the markel
Write our nearer! bit lalog.

H. W. JOHNS-MANVILLE CO.

New York

PI ladelphla
Pittsburgh

S'ui Frai ■
Beattle

Albany

Baltimore

;:. ii

Buffalo

Chicago Detroil Louisville

Cincinnati Indianapolis Mllwai I i

Cleveland iKansasCitii Minneapolis Si Louis

I'nliu- Loa Angeles Sow Orleans Syracuse ■•<".;

Ventilating
Fans

run co tinuously with practically
even load. Tlie perfect lubrication
■ * fan beamings can be automatically
-ecured at a saving over oil or inin-
"■al grease of from 40 to 9U';i with

Albany
Grease

We will be gjad to send you a suffi-
cient quantity of Albany Grease to-
gether with an Albany Cup for test.
You can determine the efficiency and
economy secured on your own fan
Our book on Friction is Instructive
Write for it.

Your dealer sells Albany Greasy —
if not order direct.

Albany Lubricating Co.

Adam Cook's Sons, Props.

« 708-10 Washington St., New York

MINING AND SCIENTIFIC PRESS

.lulv -1. 1914

Prescott

Mine Pumps

Ynu cannot afford tn experiment In your mine with
pumping machinery that has not been designed with
a full knowledge of what Is required In underground
work.

Mine pumping machinery must be equal to any
occasion that can possibly arise, and the failure t<>
take care of sudden excess conditions may mean the
loss of your mine.

The use of the ordinary commercial pump in mine
work Is a chance vou cannot afford to take.

PRKSCOTT Pumps are essentially MINE PUMPS.

They are built with the necessary margin of safety
and reliability which insures your mine against ex-
pense or loss through shut-down or failure.

Mine Pumps are our specialty.

Catalogue P-32-S2 on requent.

Fred. M. Prescott Steam Pump Co.

115 Broadway. New York. Works: Milwaukee, Wit.

Branch Offices in All Principal (iii. .- P171.S

Wire Rope

Made from thoroughly tested wire in
accordance with designs developed
by the experience of many years.

JOHN A. ROEBLING'S SONS CO.

OF CALIFORNIA

SAN FRANCISCO
SEVTTLE

4-OS ANGELES
PORTLAND. ORE.

THE LARGEST STOCK ON THE PACIFIC COAST

Jeanesville Centrifugal
Mine Pumps

Thoroughly Modern in Design

Applies to the whole line of Jeanesville
Mine Pumps. Built on methods of tested
value. Strong and reliable always, yet as simple
as possible consistent with the work demanded
of them. 50 years of experience is at your com-
mand if you will write us your pumping needs.

Write loronr new Uine Pump Cataloguo J MMC

The Jeanesville Iron Works Co.

Works, Hu'eloo, Pa. Ne» York Office, IIS Broadway

BBAKCB OFFICES IS ALL PRINCIPAL i'ITIKs

SMOOTH -ON

Send for our new
No. 15 instruction book

Every Smooth-On user should
have a copy of this new book
at one 2 It tells precisely how
to use the eight different
Smooth-On Iron Cements.
11 will save you time and
money.

SMOOTH-ON MFG. CO.

Jersey City, N. J.

Smooth-On

instructkwbook

-:■■ Pnuudsco. Oal.

„i N leflenon street
ih cago, 111.

lull I I'M I

\ii\iv. \\n >. ii mii i. I'm ss

DEWEY, STRONG &Ca

PATENTS

• II < r«.krr I.IUl.,. Su r.»r«r.
|-\ I I \|. .nil IIMIII i\ t|| |,M Mllll '

\\ r Mill utall itlilii.ui aaaafffja,
r'a.ra... Iritilriuirk*. Mil. I ton
«"•«• ml mn-hiilial tiHiiruiraia.

■ii rr«|u«-at. inir IUniH<»»h as

Am amg f«W p al ta tt n om t bt ofthrtmd thnmyh ..»,//.» M-

fou-lny dr. icorMv of ,)»,i,il •ifiilim,

.. I ■ 1 ■ . 1 ..
-. litK CO*

said >i

i- mill 1..
■I hi .Ith.r ..t ii- i» ih.. ,,.,..

ifl >« "f tin 1 iamb, of th. doorway.

OH n.v.-TKici.N.: Uiiii..,,, 8 Pride. Thin ln-

x, ' ntl,,tl > device r-.i forming and pi iihk ih.-

ilia

ii.i tin v 1 1 : VALVE
llili Invention la lo provide .. ■Imple," compact, cheaply
manufactured, ea.ll) operated valve for udmittinK auxiliary

ih.- Intel ni.uiif..i.i ..r a mii. .-iikIii.-

-J.iim J. Ifurphy.

> . \ -- I i i : N crl i: Hall, n la u bjects

••' ''"■ preaenl Inventl provldi a k.k furnace In which

ncy of ii... heat nulls produced
ibuatlon ..r the fuel may be had.

BARBER POLE ii.. v. I O. H ri i» the o

-■ nt Invention to pi barber i-.i

r->. ». ... . . . . .- 1. . .. . ■ i ... |.i
•iini: mIkii. Involving it

. or ..t her h.i-
member which mo

v.....«ui>- mikii. in\.t|\ll)K ;l mOVeaOIC lll.-lllhrr Wlli.'ll ||lli\ !<•

■i a-ltli suitable ..i divert colors, and to c bine

with auch ii pole an electric IIkMIiih aystem, the movable
member ..f the situ and the i tcm. which may In-
clude Ilk-lit* ..f viui. .ns colon being itrolled and ■ ■■

■ in. .ii h.-iii ce >.f poll

tt'oplem of any of the nl...-.- f urnUh.-.l for

FOR

SALE-

AT A VERY LOW PRICE

i i \i: r. r » 1

I Tl( A \ lull •• \

■■ I ^ i'i: ROLLS

In exi

rolls are b

lateral adju

•n. Practically as
i by rolls

0. the s;iiii.

good us- new. These
with i natlc
build.

1 It \ 1 Milt

i:\|iI\i:i:iiim.
AUeaton n. Pa,

.v MPG. CO.

For Sale, Cheap

SECOND HAND SMELTRR MACHINERY

All In ' I Condltloo

\—20"xZA"\i2" 300 H.P. Cross-compound Corliss Rn-
glne. 1 — 150 H.P. Babcock-Wilcox Boiler. 1 — 100 H.P.
Babcock-Wilcox Boiler. 5 No. 7 Cycololdal Conneisville
Blowers. 1 — 13"xl2" 60 H.P. high speed engine.

Prices and full Information on request, or can be in-
spect -"d at Keswick, Shasta County. Cal.

THK MOUNTAIN cofper CO., Ltd.
.132 Pine St., Snn Frnnclnro. Cnl.

THE DENVER QUARTZ MILL &
CRUSHER CO.

Manufacturers of Rock Cnmhers, Ore Feeder* and all kinds
of Ore Milling Mnohlnery, Especially the Denver Quartx Mill.

The best type of Chilian Mill on the market.

Attk for entnloe No. 10.

216-217 COLORADO BDG., DENVER, COLO.

DIVIDEND NOTICE

ih.- Genua d Saving*, umi Loan Society.
526 California Street, San Francisco.

For the half year ending June 30, 191*, a dividend has
been declared at the rate of four ii> percent per annum
«ti all deposits, payable on and after Wednesday, July l.
1914. Dividends nol called for air added t" the .ii-puxit

account ami earn dividends fr July 1. 1914.

GEORGE TOURNY, Manager.

POSITIONS

WANTED

l Don. >-t advertising for positions vaoti I !>•'

llllrl lion

■
ardai

■

KIV1 ■ in. it i

w "i k .

It \ . I..|-m. nl ..I i |t..<

PRACTICAL !'I;\ITSM\.\ \M. \u. iiw

h .i I .ii a* Ing i<> do

i .. \i .. .... i

M I N i: i i -I; i:.\i A \. l<>i ■

Mining kind Si lent llli i

■
nilltliiK. (.melting, and cyanide treatment, dfi

dent with IQ inagi t divided betwoon two larg<

n of tin Ri public •■! Hex Ii ■
manager or englneei with responsible minlni
Inn preferably in South America; read, write, ami Hpeuk S|
fluent!} ectly; thoroughly famlllui with laws and

loin*, ami claim ability to attain IiIkIh-.-i
working the La tin -American race*; age 10; health robust; mini
mum salary acceptable, 96000 r. s, cy per year; best refen
Boi 806, Mining and Sclcntll c Pn

CYANIDING AND MECHANICAL ENGINEER o r

gagement; l»"> years exporlenci United Stati M< tlco,

tral America; have made speclalt) of

win K" anywhero. Box ■■'•\. Mining and Scientific P

MM.L SUPERINTENDENT, B years practical e: p
Cnlted States and Mexico, now with c pany In Mexico,

on in i 'nit- d la ble September I, Bo

MiniiiK ami Scientific i *i

GRAUATE mt a i ii k and mechanical engineer desires position

inager or superintendent; long experience in all branches

of mining with progressive and successful companies; at pres-

t m with large company I it Spanish America where the latest

lis of mining, milling, and cyanldlng are practiced; sx-

mii).- and planl economies. Box 359, Mining and

■ri- pn as.

SUPERINTENDKNT desires position: ::» years .-xperlence In
Kold mines; specialty, construction of mine and mill structures,
tramways, eta K"\ 816, Mining and Sclentli.c Press.

HENRY B. LISTER.

Attorney nt Low
Notary Public and Commissioner of Deeds for New York,
805 Pacitlc Bdg.. Fourth ami Markel Streets, San 1

WANTED

iulp

lH'Ilt f'l

in traii. .11 plant ;

capai

lty ah. .hi 50

Inns

t.i

(.insist

nf a rotary mill, with

;i utomatlc reeder,

two

three 1

tncenl rating ta bles, c

assltl

•r. dlstl

eng

m .

tanks, s

haftlng, pulleys, belling, et

v\ll must

I 1 ■ ■ .ill tl.'S

gn and In a I condlti

Ml. '

Ive full par-

tlcu

a is

and qu

>t.- pri.'.'s delivered at

San

Francisco or

Los

A n v.

•les, Address Box 369. Ml] ■

Hi Sc

entitle l' 1 -

s M nil u

E SAI

Pr«

g Gold Mi n.

Five

I'llt.-nl

■ i

Th re

• I'ti-

pat.

mi.-.i

.'in

MIS

Property et

ulppei

Willi 1

- 1 .. 1 1 ,v 1

mil

lu-

..11 .

Yimlili' mill, con

presse

1 nil |.l

nil

All

ern

ll ml

reai

V t

. atari up w

repali s

Mln

\ ■■].

ped

IV 1

III-

■ tunnels, all

■ ii

••lve tin

IIRI

ml H

ore

hloc

i.-.l

that will n\

ra g-i

in in

-iil.l.

Sle.

ping

and

poi

klni; quarters i "» 1 n

I'I.

pert;

open

tor

1 n sn

■Ctll

II II

ii, I sampling;.

All .

nglnee

■epor

will

confli m

ill 1

■

Sllll.'lll. II l>

TH.IM 19 11.

m:\\ ii. h.i>.

Ull

Ins

Ex,

Iniiik.- 11.1k..

Colora

in Sprl.

■"

Colo

WJ^^^^l^ST^ Our catalogue of tech-
«O^J^/*m\J nical books makes the
finding of any particular one an easy task.
We will be glad to send you a copy.

MINING AND 80IENTIFI0 PRESS, 420 MARKET ST.. 8AN FRAN0I800

MINING AND SCIENTIFIC PRESS

July 4. 1914

WHERE TO BUY

Leading Manufacturers and Dealers in Mach ntry,
Supplies and Instruments. If you do not find what
you want here, write us and we will give you the
names of competent and reliable dealers.

t — ) INDICATES KVKRV OTHKIt WHBK OH MONTHLY V DYEHTISEMEXT

\. . i \ it-nt- Lamps Page,

■ ! —

licit at on

I ion Co. . ii

leering Co., i. C. —
i malgamntorn

\ luiiiiuiled I'lnl t->

co i 'Is ■ 1 1 ■- Wks.37
Ti ■ 'i- Engineering Co., L C. —

Aannj rn* Ji ml t'lit-mlMtM*
Director]

tge 22
Aaaaj cm' jmhI i ftemlsla' Sup-
plies

on, The -■"»

i -Knecht-Helmann Co. 36

i >em ei Fire Clay «'•■ rt7

& Smelter Supply Co..—
Balances un«l Weights

it h ft Sums. Win 41

Bra uii < '..i pora tlon, The

K necht-Helmann * '•• -'•

Co 37

i [erman, Sr ) l

Mm. ft Smelter Suppl i :o

s;.ii Lake Ha ■ dw are Co 1 1

Thompson I la lance < !o 41

. iter, Henry 41

Hull >llll«

Allls-Chalmers Mfg. Co 7

i i.i rdtnge < Ion leal ill 11 Co i i
Traylor Bng ,v Mfg Co . IS
Bearings

Ig< Mfg. Co 8

I I Roller Beai ing I "•'. . . 27

Mees* .v- c.ottfrled Co

Back < lover

Tr< ei Ing i '".. i.e.

Belting

I damond Rubber Co.. The.. . —

Mfg. Co It

! Mm se ft ' '•' —

■ F —

Meesi .v Gottfried Co

Back > !over
Belt Co. .2!'

Blasting Powder

l 'n Pont de Nemours Pow-

Blocks, Chain

& Town.- Mfg. I <■

Blowers

Allls-Chalmers Mfg Co 7

i Electric Co 8

Hendrle ft Bolthoff Mfg. ft

<'.. 2

Worthlngton. Henry R —

Holler Graphite

roseph.37
Bollem
Abendi oth ft Root Mfg. <'... . is

Allls-Chalmers Mfg. Co 7

n ks, Morse ft I '<> —

I Rl kard ft McCone

Back Cover
off Mm ft

Hendy Iron Wks., Joshua...

Front I Y.\ .i

Pow< i ft Mining Machy. Co. —

ITnlon Iron Works Co 12

BookM

Mining and Scientific Press.

SO, 35, 13

I i _

Boots and Shoes

' . Bool -v SI oe I !o - .37

Brlrk, Kir,-

Atkins. Kroll ft Co 26

n Cor] oration. The

■ i I tlmann Co. 25

I'n e Clay Co 37

Brlqaettlng Machinery

1 Corporation, The.. 2.">
Braun-Knecht-Heimann C<

Bng. ft Mfg Co IS
Buckets

Allls-Chalmers Mfg, Co.... 7
Broderlck & Bascom Rope

Co :,i

i >bdgi Mfg. Co 8

Harron, Rlckard A McCone.

Back Covei
llendrie & Bolthoff Mfg, ,<_•

Sup. Co 2

I I ■ dy Iron Wks.. Joshua.. .

Front Cover

I'age.
1 tope ' 'o., A. 29

Meese ft Gottfried Co

Back ' lover
Robin ■■ ■ -■ Bell i to , 88

Watt Mining Car Wheel Co. 37
Wellman-Seaver-Morgan Co, 19

lltiruer*, 4111

Corporation, The 85

- ECnecht-Helmann Co 3 i

Denver Fire Clay Co 37

Har Rlckard .<; McCone.

Back * lover

rn io ii 1 1 mi Works Co 12

Cablewaya, simpfDMion

Bi odei Ick ft Bascom Rope

Co g]

Flory Mfg, Co., s 39

Lescnen ft Sons Rope Co., A. 39

Palntei Tramway <'., 28

r. s. Steel Products Co.. .42
Cages

Chalmei B ft Willi;. -us 13

HeiHh-ip A- Bolthofl Mfg, .<;

Sup. < *,0 -

Hendy [ron wks.. Joshua., .

front • Jover

Traylor Bng. ft Mfg. Co.. ..46

i In Ion i rou Works Co 13

Wellman-Seaver-Morgan Co 18
Carbone, Borta. nmi Diamonds

Atkins. Kroll & Co 26

Cam

Allls-Chalmers Mfg. Co 7

Atlas Car A- Mfg Co 2s

Demarest Co., D D is

Fairbanks, Morse A Co —

Harron. Rlckard & McCone.

Back < !over
Hendrle A Bolthoff Mfg. ft

Sup. Co

Hendy Iron Wks.. Joshua...

Front Cover
m i in .'c- Smelter Suppl 3 Co
Traylor Bng. A Mfg Co. . . . IS
Mining Car Wheel Co. 27
Wei 1 ma n -Sea ver- M01 ga n Co. 1 :<
Castings
A bend roth ft Root Mfg. « '.. 19

Mfg, Co y

a lien Amerli a n Man-
ga nese Steel Co —

Lunkenhel mer Co 30

Phosphor Bronze smelting

Co 28

Taylor-Wharton iron A Steel

, t tiba Construction Co SB

Chain

Dodge Mfg. Co 9

Edgai Allen American Man-

gunese Steel Co —

■.inks. Mors.' & Co —

Harron, Rlckard A McCone.

Back
Meese A < iottfried Co

1 lack < love?
Robins Conveying Belt Co.. 2$
Taylor-Wharton iron & Steel

Co .38

Chemicals

Atkins. Kroll & Co 26

Braun Corporation, The 25

Braun-Knecht-Heimann Co. 26

Denver Fire Clay Co 37

Dodge Mfg. Co 9

Mine A Smelter Supply Co.. —
Roessler ft Hasslacher < 'liem-

Ica I Co 10

Chemists

-■- 22,
Chilean Kills
Allls-Chalmers Mfg. Co.. 7

1 !ha Imers & Williams 13

Colorado Iron Works Co. . . .51
Lane Mill ft Machinery Co .31
Power ft Mining Machv. Co. —

Traylor Eng. & Mfg. Co 45

Trent Bnglneering Co.. L. C. —
Slaaalfleru

frills-Chalmers Mfg. Co 7

Chalmers & Williams 13

Colorado Iron Works Co . . 51

l >elstei Machine Co 3

Dorr Cyanide Machy Co.... 44
Power ft Mining Machv. Co. —

Traylor Bng. & Mfg. Co 45

Trent Engineering Co., I* C. —

Page.
Clutches, i-'rfk'iioii

Mfg. Co 9

Fairbanks, .Mors.- A Co —

Harron, Rlckard & McCone.

Back Cover

ft Gottfried Co

Back ' '-'\ er
Wellman-Seaver-Morgan Co. 4 9

Coal Cutters

Allls-Chalmers Mfg. Co 7

Ingersoll-Kand Co .">

McKlern an -Terry Drill Co.. 25
Power ^ Mining Machy. Co. —

Sullivan Machinery Co —

C011I ilatullliiu' Mnrhlorrr
Bartletl ft Snow Co., C. ' ' . . 12

Dodge Mfg. Co 9

Fairbanks, Mors.- & Co —

Compressor*. Air

Allls-Chalmers Mfg. Co 7

Chalmers ft Williams 13

Chicago Pneumatic Tool Co. 38
Clayton Air Compressor

works —

Demarest Co., i_». i» 4fi

Fairbanks. Morse & Co —

General Electric Co 8

Harron, Rlckard A McCone.

Back Cover
Hendrle & Bolthoff Mfg. &

Sup. Co 2

Hendy Iron Wks., Joshua...

Front Cover

Ingersoll-Rand Co 5

Laldlaw-1 ui mi -Cordon Co.. . —
McKlernan-Terry Drill Co.. 25

Nordberg Mfg. Co 30

Sullivan Machinery Co —

Trent Bnglneering Co.. L. C. —

Tit ion Iron Works Co 12

Worthlngton, Henry R —

Concentrator Belts

Diamond Rubber Co., The... —

1 1 Irlch 1 'o., B. F —

Concentrator*

Allls-Chalmers Mfg. Co 7

1 Ihalniers ft Williams 18

Colorado Iron Works Co.. ..53
Delster Concentrator Co.... —

r Machine Co 3

Demarest Co., D. D 46

Hendrle & Bolthoff Mfg. A

Sup. Co 2

Hendy Iron Wks., Joshua...

Front < lover
Mine ft Smelter Supply Co. . —
Power & Mining Machy. Co. —

Traylor Eng. & Mfg. Co . . . . 4 7,

Trent Engineering Co., U C. —

Union iron Works Co 12

Concrete >llxers

Fairbanks, .Mors.- & Co —

Harron, Rlckard &,- McCone.

Back 1 lover
Power A Mining Machy. Co. —
Condensers

Alberger Pump Co 28

Allls-Chalmers Mfg. Co 7

Blake & Km.vvl.s Steam

Pump Works —

Cameron Steam Pump Wks. 39

1 ': ■ ott Steam Bump < 'o..

Fred M :;!

Worthlngton, Henry R —

Contract, Drilling

Linscott 1 'rilling Co 2S

Longyear Co., E. J 4 5

Conveyor*. Belt

Allls-Chalmers Mfg. Co 7

Blake A Btnowles steam

Bump Works —

Hodge Mfg CO 9

Meese A Gottfried Co

Back Cover
Robins Convoying Belt Co. .31
Conveyors, Screw

Dodge Mfg Co 9

Meese i- Gottfried Co

Back " 'nver
CnnverterN

Allls-Chalmers Mfg. Co 7

Urn. hie ft Bolthoff Mfg. &

Sup. CO 2

Bower A Mining Machv. Co. —

Traylor Eng. & Mfg. Co 15

Union Iron Works Co 12

Couplings, Hose

Mulconroy Co., Inc 2!>

Page.
Cranes
Wellman-Seaver-Morgan Co. 49

Crnelhles

Braun ( Corporation, Tin- 38

Braun-Knecht-Heimann Co. 25

1 >enver Fire < !lay Co 37

I >ixon Crucible Co., Joseph . 3 -

Mine A Smelter Supply Co. . —

Crushers

Allls-Chalmers Mfg. Co 7

Bacon. Earle C 88

Braun Corporation. The 25

Braun-Knecht-Heimann Co. -'■">

Chalmers A Williams 13

Colorado Iron Works Co. ...51

Denver Fire Clay Co 37

Denver Quart-/, Mill & Crush-
er ' *o 35

Fairbanks, Morse & Co —

Harron, Rlckard & McCone.

Back Cover
Hendrle & Bolthoff Mfg. &

Sup. CO 2

1 1 1 in! \ Iron Wks.. Joshua. . .

Front ' Jover

Power ft Mining Machv. Co —
Traylor Bng, ft Mfg. CO.... 45

Trent Engineering Co., I* C. —

Union Iron Works Co 12

Cupels

Braun Corporation, Tin- 25

Braun-Knecht-Heimann Co. 35

Denver Fire Clay Co 37

Mine & Smelter Supply Co. . —
Cyanide Plants ami Machinery
Abend roth & Root Mfg. Co.. 48
Allls-Chalmers Mfg. Co 7

Blatsdell Co —

Butters Patent Vacuum Fil-
ter ' !o — ■

Chalmers & Williams 13

Colorado Iron "Works Co.... 51

I >. -mar. -st Co., D. D 46

Dorr Cyanide Machy Co. ...44
Mammon.] Iron Works 37

Hendrle ft Bolthoff Mfg. &

Sup. CO 2

Hendy iron Wks., Joshua. . .

Front Cover

Kelly Kilter Press Co 32

Meese A (iottfried Co

Back Cover
Mine ft Smelter Supply Co.. —
Pacific Tank A Pipe Co.. ..60

Perrin A Co., Wm. B 28

Power A Mining Machv. Co. —

Redw ) Manufacturers 1 !o 28

Traylor Eng. & Mfg. Co.... 46

Trent Engineering Co., L. C. —

Dewaterera

Blaisdell Co —

1 Colorado Iron Works c ',.. , . . r,i

I >orr Cya nlde Machv Co. . . . ti
Trent Engineering Co., L, C. —
Distributers

Blaisdell Co —

Colorado Iron Works Co.. ..61
Trent Engineering Co.. \ t , C. —
liraitini; Material

AIns worth & Sons. Wm 41

Buff A Buff Mfg. Co 41

Lletz Co.. A 41

Dredges

Bucyrus Company 31

Marlon Steam Shovel Co... 46
New York Engineering Co. .39
T'n ion Construction Co 28

Union iron Works Co 13

ruba ■ Construction Co 38

DredKlug Mtiehinerr
Abendroth ft Root Mfg. Co. 48
American Locomotive Co... 48

Bucyrus Company 31

Edgar Allen American Man-
ganese Steel Co —

Hendrle & Bolthoff Mfg. &

Sup. Co 2

Marion Steam Shovel Co... 46
New York Engineering Co.. 39
Robins Conveying Belt Co.. 29

Seattle Machine Works 81

Taylor- Wharton Iron & Steel

Co 28

Union Construction Co 28

Union Iron Works Co 12

Wpllman-Seaver-Morgan Co. 49

Yuba Construction Co 28

lirlll Makers and Sharpeners
Ingersoll-Rand Co 5

H oat Inued on paiee :fsi

MI\IV. AM) S< II Mil It I'KI SS

REQUIRES LESS OUNCES THAN
OTHER BURNERS REQUIRE POUNDS

« L8S in i im. < in « inn: ri iin m i:

Patented Low Pressure Fuel Oil Burner, which

ei less ounces of air preaauri to atomise >>il thor-

ly, than other burnarn require pounds of itlr pressure.

Inner linings are of a vary refractory lire olay tllo, and

Illicitly and eaully replaced when necessary.
Outer lining Is protected fully, and seldom needs re-
newing'.

Uniquely effective pressure fan furnishes air at a con-
stant pressure of about 6 o«. and uses only '. to M H.I'.

Practically >iil.rl.-«:

THE DENVER FIRE CLAY COMPANY
nuraiL colo.

They drove the Tieton Tunnel with

W0011 Snrk irtlla

Here li an Instance in which the U. S.
Reclamation Service proved out the effi-
ciency and economy of Wood Rock Drills.
In these drills, cylinders, chest and alr-
head, the most Important parts, are now
mode of Vanadium Tungsten Iron. Learn
what MANY users say

Write for our new Cntnloic today.

Waab Irtll Works

30 Dale Ave., Paterson, N. J.

Agents: Hammond Mfg. Co., Portland, Ore.
Pairbanks, Hone & Co., Spokane and [Seattle.
Joshua II*-ndy Iron Works, Ban Francisco,! al.

SILVER PLATED COPPER

AMALGAM PLATES
FOR SAVINS BOLD

Most extensive and successful
manufacturers. Old plates re-
plated — made equal to new.

Sai Francisco Plating Works

IMMl Mlulea St.. Su FraicbK,.

I. C. DtflNlSTON, rr,»

<.et our prices. Catalog sent.

Telephone Market 2915.

WHEN YOU BUY
STEEL TANKS

"THINK"

IIAMCINDTAMv

Cyanide and Storage Tanks

Zinc Boxes — Thickener Tanks

Complete Oil Refineries

HAMMOND IRON WORKS

WARREN. PA., U. S. A.

New York < iRice:
■2728 Whitehall Bdg., 17 Battery Place.

An* >lntlc For Operation

By Any Power.

Ilnrlxontnl or Vertical

Type..

Stationary or Portable.

Write for Catalogue "H"

THEDEMINGCO.

SALBH, OHIO

Htnioo Sc Hubbell. Chic.JO Hendrit «c BollhoJ Mfs. & Supplr Co.. Denver
Norman B. Miller Co.. Sao Francisco EngliihTool fit Supp'y Co.. kansoi City, Mo.
Ralph B. Carter Co.. I 52 Chamber. St.. New York

DIXON'S

THE PIONEER

BOILER GRAPHITE

The action of Dixon's Flake
Boiler Graphite is to soften and
break up the scale already in »
boiler, uml then t«» coat tubes
and sheets with a Him of trnuih-
[tc to which Bcalo cannot adhere, in doinu: this, no form ol graphite i--
so effective as the Hake form -and there is no flake graphite superior to
Dixon's Tlconderoga Flake, study the Question In "Graphite PorThe
Boiler." So. 141, free.

Made in Jersey City. N. J„ by the

JOSEPH DIXON CRUCIBLE COMPANY

Pacific Coast Branch, 155 Second St., San Francisco

MIN'ING AND SCIENTIFIC PRESS

WHERE TO BUY

July 4, 1:<H

i 'age,
Drilling. Contract
Llnscot Co ..,.28

■ a r Co., B. J id

Drlll«* *lr mill Steam

pni li ma tic Tool I !o 38

ind Rock Drill Co 8

i lemarest ' !o., I • ! • 46

Harron, Rlckard A McCone.

Back ' lover
Hards* •••- Wonder I irlll i
Hendrii »fl Mfg A

Sup. Co I

ingersoll- Rand Co 5

McKlernan-Ten ) I trill I
Mine A Smelter Supply l '■■
Sullivan Mai ... . —

Wood Drill Work* SI

Drill** Core

ea r < '■■ . E. J IB

McKler nan -Terry Drill

ard Diamond Drill Co 88

an Machinery Co —

Or 1 1 In, Electric

Harron, Rlckard .<.- McCone.

Back Cover
mgeraoll-Rand Co R

Drills, I'rnwpeetlnK

Harron, Rlckard A: McCone.

Back * lover

toll-Rand ' !o, "i

McKlernan-Terry Drill Co. .25

Llnscott Drilling Co J*

Longyear Co., B. ■' 15

New York Ei

Star Drilling Macl ■

Standard Dii 11 Co. 28

Sullivan Mai bin Co —

I l\ IMIIIlit,-

Du Ponl de Nemours Pow-
der Co 32

l>VI11llllflM

Allla-Chalmers Mfg. Co 7

■ nks, Moi ii A Co —

* Genera l Electric < '•• B

Hi ndrie A Bollhofl Mfg &

Sup. i '-} -

Western El Co

Weatlnghouse Electric A

Mfg. Co —

K.iiKlncM. Dew iiimI <>ii<«ollnr

Allls-Chalmers Mfg, Co 7

... ii ks, Morse A Co —

Hendrh & Bolthofl Mfg A

Sup i '.. 2

Hendy Iron Wka

Fronl ' '"v.i
Power A Mil Co.—

Knurlne*. Oil

Sulzer Bros. — i 'lesel

Eng Ine Co.

■ nks, Morai A Co —

Snow Steam ruin]. Works..—

Kngine*. Strum

Allls-Chalmera Mfg. i !o 7

t \L- Knowlcs Steam
Pump Works —

■ ; nks. Morse ft Co —

Harron, Rlckard A McCone.

Back Cover

i iron Wks., Joshua. . .

Front ' !over

Nordberg Mfg. Co 30

Traylor Eng. & Mfg. Co . IS

. i ron Works l '" 12

We 11 man- Sea ver- Morgan Co. 19
Bxcavattag Machinery

■ II Co —

Fan*, \ . 1 1 1 i 1 J 1 1 inu

Allls-Chalmera Mfg. Co 7

■ ;; nks. Morse ft Co —

General Electric <*" 8

Harri m, Rickard A McCone .

Back Cover
Hendrie ft Bolthoff Mfg. ft

Snp, Co 2

Sullivan Machinery Co —

Filter I*r«*KM«*M

Kelly Filtei ... .32

Perrfn A Co., Wm. R 2s

Traylor Eng. ft Mfg. Co. ...45
Trent Engineering Co., L C.-
PHtera

lell Co., The —

Buttera Patent Vacuum Fll-

ter Co —

ners ft Williams 13

Colorado Iron Worke Co.. ..61
Traylor Eng. A Mfg. Co , ..45
Trent Englm L. C.—

Fire Brick

Atkina. [troll ft Co 36

porntion, T>i- _'■

Bra un- K tiechl - 1 (elma tin Co . 2"

Di nv.r Fire Cls i Co 37

Fittings^ Malleable nml

Cast Iron
National Tube Co 10, n

Page.
Fiances

American Spiral Pipe Wks.. 20

i« r Co 10

1 Tube Co 10, II

Foundry Baujpment

[ngersoll- Rand Co 5

Sullivan Machinery < !o —

: n -Sea ver Morgan i

Frogs nml Switches

ks. Morse ^- Co —

Johns- Manvllle Co., n W. .83
V. s. Steel Products Co . . 12
Watt Mining Car Whei I i i

l-'iirnneeM. Assay

Braun Corporation, The 35

Braun-Knecht-Helmann • !o 36

Denver Fire Clay Co 37

Mine <<.- Smelter Supply Co.. —
Furnaces, ItonNtlng mid
Smelting

Allls-Chalmers Mfg. Co 7

i Colorado iron Works Co . . .5 1
Hendrie & Rolihoff Mfg. &

sup. Co a

Power A Mining Machj .Co

Traylor Eng. ft Mfg. Co 45

Wedge Mechanical Furnace

Co. 6

Gas Prodneera

Power & Mining Machy. Co. —

Wellman-Seaver-Morga n Co. 19

Gaskets

American Spiral Pipe Wks.. 30

Diamond Rubber Co., Tl i

Johns -Manvllle Co., H. W. .83

Smooth-On Mfg Co 31

Ge a rs

Mfg. Co 9

\ Hen Amerli an Ma n -

bsg Steel Co —

! Electric « '<< 8

Meese ft Gottfried Co

Back Covi r

Pacific Gear ft Tool Co 29

Generators

A Ills-Cha Imera Mfg, Co 7

nks. Morse & Co —

i ieneral Electric < 'o 8

Hendrie A Bolthoff Mfg. &

Sup. Co 2

Western Electric Co —

Westlnghouse Electric &

Mfg. Co —

Giants* Hydraulic
See I lydra ulic Mining

Ma. 111!

<; rn i> ii it e Products

l ilxon Crucible Co., Jose]

Heaters* Peed Water

Alberger Pump Co 28

Allls-Chalmers Mfg. Co 7

Blake A Knowlea Steam

Pump Works —

Dodge Mfg, Co !t

Fairbanks, Mors.' A Co —

Hendrie A Bolthofl Mfg, A

Sup. Co 2

Union Iron Works Co 12

Hoists. Air

Hendrie ft Bolthoff Mfg ft

Sup. Co -

Mine & Smelter Supply Co.. -4-
HolNtN. Electric

Allis-1 [fg. Co 7

Demarest Co.. n. i> in

inks, Morse ft Co —

Flory Mfg. Co.. S 39

General Electric Co 8

Harron, Rlckard & McCone.

Back * lover
Hendrie ft Bolthofl Mfg. ft

Sup. Co 2

Hi ndj Iron Wks., Joshua. . .

Front i lover

Lldgerwond Mfg. Co 17

Nordberg Mfg, Co rto

Power & Min inu Ma< \\y

Sullivan Machinery Co —

Union rron Works Co 12

Wellman-Seaver-Morgan Co. 49
w ea t i ngh o 1 1 se K l ec trie ft
Mfg. Co —

HoImIm. "Irsirn

Allls-Chalmers Mfg, Co 7

Demarest Co.. n. P 16

Fairbanks, Morse & Co —

Flory Mfg. Co., s :•:'

Harron, Rlckard K- McCone.

Bark i 'over
Hendrie ft Bolthofl Mfg. A

Sup. Co 2

Hendy iron Wka., Joshua...

Front Cover

Lldgerw 1 Mfg. Co 47

Nordberg Mfg. Co 30

Power & Mining M.vhv. Co —

Page.

Sullivan Ma Co —

Union li.. u Works Co 12

Wellman-Si -u\ er -Morgan Co. 19
Hose

I damond Rubl —

Fairbanks. Morse A Co. . . . —

< ; Irlch uk».. B, P —

nd « !o 5

John s-Manvi lie Co., H. W. .33
Ilydrnulle Mlulnis Mueblncr)
Abendrol b A Root Mfg. Co 18
American spiral Pipe Wks.. 30

Hendy Iron Wks.. Joshua...

Fron l
Pelton Water Wheel Co. . . .83

Union Iron Works Co 12

Injectors

Lunkenhelmer Co 30

p.. well Co., Wm 81

lr»n Cements

Smooth-) 'ii Mfg. Co ' : I

Jltw I'lntri*

Edgar Allen American Man-
ganese steel Co —

']' 1 1 tor-Wharton imn & Steel

CO 2>s

Jlars

Allls-Chalmere Mfg. Co 7

Colorado Iron Works Co. 51

l.ntmrntory Supplies

Bee Assayers' and Chemists'

Supplies.
i.miiiiM, Art* nml [neandeaeent

General Electric Co s

Western Electric Co —

Westlnghouse Electric A

Mfg. CO —

i.umpN, Acetylene

J us trite Mfg. Co —

Lead Joint Pipe

National Tube Co 10, ll

I motives* Electric

Atlas Car <£ Mfg. Co 2*

General Electric Co B

West Inghouse Electric &

Mfg. Co —

i.im Mttive*. Steam

Ami i lea n Locomoth ■■ Co. . .48

Lima LOCOIOOtlve ' Jorp 27

Lubricants

\ ii. any Lubricating Co....

i 'i.nk's Sons. Adam 38

i lixon Crucible Co., Joseph 37
Lubricators

Albany Lubricating Co 33

i book's Sons, Ada m :::;

i lodge Mfg. Co 9

Lunkenhelmer < '•> 30

Powell Co., Wm 31

>1 an lM-.il f

Atkins, Kroii ^- Co 38

Metal, lleiirlng
Phosphor Bronze Smel

Co .28

Hetal Buyers and Dealers
American Metal Co.. Ltd. . .26

Atkins, Krull A; Co 26

Beer, Sondheimer & Co 26

Consolidated Min. A Sn

ing Co. of Canada, Ltd. .26
international Smelting A Re-
fining Co. 26

Mountain Copper Co ■'•'•

Selby Smelting ,v- Lead Co. .26
U. S. Smelting, Refining 4 ^-

Minlng Co 26

Vogelsteln & Co- i> 36

Wlldbei - Bi oa 26

Hills, Ban nml Pebble

Allls-Chalmere Mfg. Co 7

Colorado Iron Works Co.. , .61
g ( Conical Mill i 'o. . . i *
Traylor Eng, A Mfg. Co ...45
Trent Engineering Co., 1-. C —
Mills, Chilean
AUis-Chalmers Mfg. Co 7

Colorado Iron Works Co.. - . •"• 1

Lan.-- Mill ft Machinery Co.. 81
Power ft Mining Machy, Co. —
Traylor Eng. ft Mfg. Co.... 45
Trent Engineering Co., t* C. —

Union Iron Works Co 12

Motors

Allls-Chalmera Mfg. Co 7

Falrba nks, Morse & Co. . . . —

General Electric Co 8

Hendrie A Bolthofl Mfg. ft

Sup. Co 2

Hendy Iron Wks.. -loshua. . .

Front Cover
Mine & Smelter Supply Co.. —
Western Electric Co —

w es t In g 1 1 o u se Electric -v-
Mfg. Co —

XnllM. l*huN|itior llronxe

or Bronze Smelt Ing

Co a

oil nml Grease Cvna
Albany Lubricating i o

Cook's Sons. A.Iain

Lunkenlo t r ' !o

Powell Co., Wm

Oil well Bnppllca

l troderlck i: Bascom I

<'., r,i

i diamond Rubber Co —

Ha rum, Rlckard ft McCone.
Back i

Hendy Iron Wks '

Front Cover

1 1). 1 1

-'■ ■ i i rilling Ma. 'lum- i ■
Union Iron Works Co 12

r. s steel Products Co
ore Bayers

See Metal Buyers and Deal-
ers:
Also see page 20.
Packing;
Diamond Rubber Co. . . . . . . —

Johns-Mam lib Co., II. W. .33
l*n per

Blake, Mofflt A Town.-. .28

I'nieiii Attorneys

Dewey, Strong ft Co. 38

Pebbles

Atklns-Kroll .v- Co 2S

IVrlomt.-il ^letnlM

Allls-Chal -s Mfg Co. . .. 7

Ludlow-Saylor Wire «*".... »7

riiOKphnr liri.ii/..'

Phosphor Bronze Smelting

Pipe Covering

Johns-Manvtlle Co., H. W. . 33
ripe. Riveted

Abendrotli .\.- Rool Mfg. Co. is
Amerli an Spiral Pipe w

Pipe, \\ l

Pactrlc Tank ft Plpi I
Redwood Man ufacl urcra
Pipe, Steel

National Tube Co I

Pipe Threading; Machines

Mem ii Mfg. Co ::•

Powder, itiiiMtine
i mi Pont de Nemours Pow-
der Co

Producer, Gas
Power ft Mining Ma

t'er-Morgan < '•■ . i:t
Pntleya, Shnftlnar nml Httne«-i-M

Dodge Mfg. Co 9

Fairbanks. Morse ft Co —

Harron. Rlckard ft Md '

Back i '■ ■■■
Hendy Iron Wks.. Joshua...

Front i 'over

M.es. ft Gottfried Co

i lack i lover
Robins ' !onvej i ng h:»-li • '■• 29
Wei Ima n-Seavi i -Morgan Co, 19
Pulverisers

Allls-Chalmera Mfg. Co 7

Braun ' 'orpora tfon, Tin
Braun-Knecht-Heimann > n .. 2S

chain i. is ft Williams L3

i Colorado h-on Works * '•■.

1 >< over Fire ■ !la y C« 8f

Denver Quartz Mill A Ci - -

er Co 35

Hardinge Conical Mill Co i (
1 1. ndy i ron W ks., Josh

Front < 'over
Johnson Engineering Wks. . 2 7
Mine & Smelter Supply '
Power & Min!

Traylor Eng. A Mfg: Co. . . i"
Trent Engineering Co., L. C -*-
Wellman-Seaver-Morga
Pumps

a Ibei ger Pump &- Con C
Allls-Chalmera Mfg. Co.. ... 7
Cameron Steam Pump Wks..

Deane Steam Pump Co —

I kemarest Co., D. D u

Demlng Co., The SI

Fairbanks, Mors.- A Co. . . . —

i i ■ nier A Son : ■■

General Electric Co v

Flarron, Rickard & MO

Back i ' ivef

i (.ml In lied on pasre 40).

.IiiU 4 I'D I

MINING WD m 11 mini I'Kl SS

THE "EMPIRE"DRILL

DRILL ROD AND HANDLE

The top drill
rod is marked
on three sides
with one-inch
graduations,
stamped in the

metal, thus

showing at a

g I a u c e t h e
exact length of
core in the

rasing. This
is the only ac-
curate means
of determining
this vital point
in drilling and
should be con-
trasted with
the slip-shod
means used in
othermethods.
The fourth
side of the rod
is cut in a
series of teeth.
The drill rod
handle is of
forged steel,
with fuu i- arms covered with hard fibre, giving
a good grip and protecting the driller's hands
from contact with the metal in very cold or
very hot weather. This handle has a set of
teeth corresponding with those on the drill rod,
which are forced and held in engagement with
the drill rod teeth by a lever and cam. This
gives an instant and positive locking of the
handle at any point on the rod, and an instant
and easy release for raising, lowering or adjust-
ment at any height.

The New

"Empire"

Catalog

Gives Other

Interesting

Details.

NEW YORK ENGINEERING GO.

2 RECTOR ST.

NEW YORK

Western Agent:
V. A. Stout. 601 Balb.-ia Bdg . San Franciico

"EMPIRE" GOLD DREDGES

THE SLOGAN OF THE OAMMBOa

"CtfAB [ill ■.•/,'.■ THE GRANDEST THING.

In Long, Steady, Unbroken
Pumping

There is where pump efficiency
tells and there is where

CAMERON

Multi-Stage Turbine
Centrifugals

prove their superiority. In mine pump-
ing, these long pulls are the rule — and
mines will find Cameron Multi-Stage
Turbine Centrifugals best adapted to
their work.

These pumps are extremely simple,
compact, easily transported, and are
driven by motor or other motive power.
Note the accessibility. Casings are split
horizontally, so that every working part
may be reached without disturbing pipe
connections or pump alignment. Built
of the finest material. Highest efficiency.

Let its tell t/fttt mitre about litem
— write note for Bulletin Ko. ISt.

A. S. CAMERON STEAM PUMP WORKS

II BROADWAY, offices the woriaovcr NEW YORK

MINING AND SCIENTIFIC PRESS

July 4. 1914

Engineers' Instruments and Assayers' Supplies

The Variable Power
Eyepiece

A Real Economy
15 to 25 Diam. en Transit
18 to 36 Diam. on a Level

Advantage* :

Working day length-
ened by low power
in dull light.

Number of set-
ups lessened by
high power for
long sights in
bright light.

Obtainable only
on instruments
manufactured by

gausch & |pmb Optical (5.

705 ST. PAUL STREET ROCHESTER. N.Y.

»0»« WISHINCKM CKIUCO

■>t. 613 151tl St. »W. IS I. Michigan Biro.

sm FMNCISCO
154 Sutler SI.

The Roessler & Hasslacher
Chemical Company

100 William Street, New York

Works: Perth Amber. H. J.

Cyanide

98/99 Per Cent.

Cyanide of Sodium

128/130 Per Cent.

AND OTHER CHEMICALS FOR
MINING PURPOSES

Gold Medal Award at SI. Loois

imo sassy wo*

FOB OVER 60 YEARS

Troemner's
Improved No. 3
Assay Balance

1% inch Beam.

Sensibility Vioo Mg.

Full, Clear sweep across beam, no obstructions. Fall away beam and pan UTefltS.

The most popular and efficient Assay Balance. All agate bearings and edges.

List Price. $95.00. Price List on Application.

HENRY TROEMNER. Philadelphia, Pa., U. S. A.

WHERE TO BUY

Page.
Hendrle & Bolthoff Mfg. &

Sup. Co 2

If* ■nilv Iron Wks., Joshua...

Front Cover
Jackson Iron Works. Byron. 29
Jeanesvtlle Iron Works. . . .34

Krogh Pump Co —

Meese & Gottfried Co

Back Cover
Mine & Smelter Supply Co. . —
Prescott Steam Pump Co.,

Fred M 34

Pulsometer Steam Pump Co. 43
Trent Engineering Co., L. C. —

Union Iron Works Co 12

Yuba Construction Co 28

Quick* liver

Atkins. Kroll & Co 26

Braun-Knecht-He Iniann Co. 25
Mine & Smelter Supply Co.. —
Hnlltvny Supplier and Equip-
ment

American Locomotive Co. . .48

Atlas Car & Mfg. Co 28

Fairbanks, Morse & Co —

Uma Locomotive Corp 27

u. S. Steel Products Co 42

Watt Mining Car Wheel Co. 27

Replncem

Trent Engineering Co.. L. C. —

He* cue AppnrutDN

Blnier, H. N 49

Hint-, and Die*
See Jaw Plates.
RoIIm. CruMliliiK

Allis-Chalmers Mfg. Co 7

Bactm. Earle C 28

Chalmers & Williams 13

Colorado Iron Works Co ...51
Hendrle & Bolthoff Mfg. &
Sup. Co 2

Page.
Hcmly Iron Wks.. Joshua...

Front Cover
Lane Mill & Machinery Co.. 31
Power & Mining Machy. Co. —
Taylor-Wharton Iron & Steel

Co 28

Traylor Eng. & Mfg. Co 45

Trent Engineering Co.. L. C. —

It itofl ag

Johns-Manville Co., H. W..38

Rope, Manila and Jute

Broderlck & Bascom Rope

Co 51

Dodge Mfg. Co 9

Leschen & Sons Rope Co.. A. 29

Meese & Gottfried Co

Back Cover
Rope, Wire

American Steel & Wire Co. 40
Broderlck & Bascom Rope

Co 51

Dodge Mfg. Co 9

Leschen & Sons Rope Co.. A. 29
Phosphor Bronze Smelting

Co 28

Robins Conveying Belt Co.. 29
Roebling's Sons Co.. John A. 34
U. S. Steel Products Co 4 2

Sam pi em

Braun Corporation. The 25

Bra un-Kn echt - Helms nn Co . 2 5
Colorado Iron Works Co.... 51

Denver Fire Clay Co 37

Mine & Smelter Supply Co.. —
Traylor Eng. & Mfg. Co 45

Sow Mill Machlnery
Hendy Iron Wks., Joshua...

Front Cover

Page.
Schools and College*
Heald's School of Mines.... 22
Van der Nalllen School, A. .28
Screen*

Allis-Chalmers Mfg. Co 7

Chalmers & Williams 13

Colorado Iron Works Co. ...51
Edgar Allen American Man-
ganese Steel Co —

Ludlow-Saylor Wire Co.... 47

& Gottfried Co

Back Cover
Power & Mining Machv. Co. —
Traylor Eng. & Mfg. Co. ...46
Shafting
See Pulleys. Shafting and

Hangers.
Shells and Ring*
See Jaw Plates.
Shoen and Die*.

Union Iron Works Co 12

ShovelN. Electric and Steam
American Locomotive Co... 48

Bucyrus Co., The 31

Marion Steam Shovel Co. . .46
Sllex

Atkins. Kroll & Co 26

Smelters and Itrftner*

Beer, Sondheimer & Co 26

Consolidated Smelting & Ref.

Co, Of Canada. Ltd 26

International Smelting Co.. 26
Selby Smelting & Lead Co.. 26
TJ. S. Smelting, Refining &

Mining Co 26

Vo gel stein & Co.. L 26

Mitt-iflnu Machinery
Allis-Chalmers Mfg. Co 7

Pag-.
Colorado Iron Works Co.... 51
Hendrie & Bolthoff Mfg. &

Supply Co I

Power & Mining Machy. Co. —
Traylor Eng. & Mfg. Co . . . .46

Union Iron Works Co 12

Wedge Mechanical Furnace

Co G

Springs*

American Steel & Wire Co.. 4:

Gary Spring Works tl

t*. s. Steel Products Co.... 42
Stump Mill*

Allis-Chalmers Mfg. Co 7

Chalmers & Williams 13

Colorado Iron Works Co

i lemarest Co.. D. D 4*

Fairbanks. Morse & Co —

Hendrle & Bolthoff Mfg. &

Supplv Co 2

Hendy Iron Wks., Joshua...

Front Cover

Nordberg Mfg. Co 80

Power & Mining Machv. Co. —
Traylor Eng. & Mfg. Co.... 48

Union Iron Works Co 12

w.-llman-Seaver-Morgan Co. 19
Stump Stem Golden

Demarest Co., D. D 16

Steel, Drill

Barron, Rickard & McCone.

Back '
Steel. M a ni; n ii fur
Edgar Allen American Man-
ganese Steel Co —

Taylor-Wharton Iron & Steel

CO 2^

Suction Dredge*

Tubs Construction Co : •

Jllll I l'>ll

MIMV. II Mil |( I'KI SS

Thompson's
Balances

will uttiafy the most
exacting demands.
Their constancy is in
keeping with the ex-
treme care required
for accurate work.
YOU CAN BUY THEM DIRECT FROM THE FACTORY

To avoid inaccurate weight* alwmy. utc our
Multiple Ridrr Attachment.

THOMPSON BALANCE CO. DENVER, COLO.

BUFF

ENGINEERING INSTRUMENTS

BUFF & BUFF COMPANY

Jamaica Plain Station. • - BOSTON. MASS.

A. f . FULLfR, 8IATTLC, AOINT FOR NORTHWEST

The "Bad ' i- the remit ai BO yean >■( instrument Mndj bj

ourMr.'leo. L. Buff— »mr praWPt manager. Swdtof wWogoi 31

Lictz

/WE FOREMOST WITH THE PROFESSION

TUT A.LIETZ CO.SftN FI?ANC ISCO, CAL.

ESTABLISHED 188:

^» HERMAN KOHLBUSCH, Sr.

^PV ESTABLISHED 1859
TT\Bl 170 BROADWAY, NEW YORK
lllXTB "1 HANl'FACTUBKB OF

TObhK Fine Balances and Weights

JtF* ~-~~=9^ ''" r every purpose where accuracy is required.
Bi>>m^F SEND FOR ILLUSTRATED CATALOGUE

CAN'T WIRP

I'M

trouble with » ba

N uaw ■ wu

■
\» Oilld A|>|-ir< le I

hi I I r U

BALANCE

with ■ ■■•fx-lal ti
un « iii.-ii

DO ura-liiMI.-:
■ i -a i «■ ii , »ti rl
» nt p H.

VrHi If rMM » l—rtl

THE SALT LAKE
HARDWARE CO..

SALT LAKE CITY, UTAI

/(/F/C//V

Backed by a record of 2& years of dependable sn plct
DATA ' "<; 09 14 h u i i B I

7» £ /UFKJN #UL£ fa St ^^

MEASURING
TAPES AND
RULES

SEND FOR CATALOG

A-9 OF BALANCES
BX-9 OF ENGINEERING INSTRUMENTS

WM.AIHSWORTH |

• arsons •

THE PRECISION FACTORY

DENVERXOLO.
• U.S.A. •

CARY SPRING WORKS

240-242 W. 29th St.. NEW YORK CITY

HIGH GRADE SPRINGS

OF ALL KINDS
FOR EVEAY PURPOSE

Write for Booklet "M."

WHERE TO BUY

Page.
Tanks, Cyanide

Ahendroth & Root Mfg. Co.4S

Hammond Iron Works 37

National Tube Co 10, 11

Pacific Tank & Pipe Co 50

Power & Mining Machy. Co. —
Redwood Manufacturers Co. 28
Traylor Eng. & Mfg. Co.... 45
Trent Engineering Co.. L. C. —
Tapes, Measuring

Lufkin Rule Co 41

Telephones, Mine

Western Electric Co —

Thickeners, Sllnu-

Colorado Iron Works Co. ...51

Dorr Cyanide Machy Co.... 44

Traylor Eng. & Mfg. Co 45

Trent Engineering Co., L. C. —
TriiinMiijs, Aerial
Broderick & Bascom Rope

Co 51

Leschen & Sons Rope Co., A. 29

Painter Tramway Co 2S

Riblet Tramway Co 28

Roeblfng's Sons Co., John A. 34
IT. S. Steel Products Co 42

Tniii.slls

Ainsworth & Sons, William.il
Bausch & Lomb Optical Co. 40

Buff & Buff Mfg. Co 41

Lietz Co., A 41

Transmission Machinery
Dodge Mfg. Co 9

Page.

Fairbanks, Morse & Co —

General Electric Co s

HarroDi Rlckard & McCone.

Back Cover
Hendy Iron Works. Joshua.

Front Cover

Meese & Gottfried Co

Robins' Conveying Belt Co.. 29
Taylor-Wharton Iron & Steel

Co 28

Tube Mills

Allis-Chalmers Mfg. Co 7

Chalmers & Williams 13

Colorado Iron Works Co. ...51
llardinge Conical Mill Co... 14
Power & Mining Machy. Co. —
Traylor Eng. & Mfg. Co.... 45

Union Iron Works Co 12

Tubes

National Tube Co 10, 11

Turbines, Hydraulic

Allis-Chalmers Mfg. Co 7

Hendy Iron Works. Joshua.

Front Cover

Pelton Water Wheel Co.... 33
Wrllman-Seaver-Morgan Co. 49
Turbine*, Steam

Alberger Pump Co 2 8

Allis-Chalmers Mfg. Co.... 7

General Electric Co S

Unions

Lunkenhelmer Co 30

Page.

National Tube Co 10, 11

Valve*

Lunkenhelmer Co 30

National Tube Co 10, 11

Pelton Water Wheel Co 33

Powell Co., Wm 31

Water Wheels

Dodge Mfg. Co 9

Pelton Water Wheel Co 33

Union Iron Works Co 12

Wellman-Seaver-Morgan Co. 49
Waterproof Coating
Johns-Manville Co., H. W..33

Smooth-On Mfg. Co 34

Water Softeners

Dodge Mfg. Co 9

Weighing Machines

Merrick Scale Mfg. Co 32

Welding Processed
Goldschmidt Thermit Co.... —
Well Drilling Machinery and

Supplies
Brod prick & Bascom Rope

Co 51

Barron, Rickard & McCone.

Back Cover
Star Drilling Machine Co... 32

Union Iron Works Co 12

Wheels, Car

Watt Mining Car Wheel Co. 27

Wire Cloth

Ludlow-Saylor Wire Co 47

Page.
Wire Cables

American Steel & Wire Co. .42
Broderick & Bascom Rope

Co 51

Leschen & Sons Rope Co., A. 29

Painter Tramway Co 28

Roebling's Sons Co., John A. 34
TJ. S. Steel Products Co.. ..42

Wire, Insulated

American Steel & Wire Co. 42

General Electric Co 8

Goodrich Co., B. F —

U. S. Steel Products Co 42

Western Electric Co —

Xlnc Boxes

Braun Corporation, The 25

Rrau n-Knecht-Heimann Co. 25
Colorado Iron Works Co. ...51

Denver Fire Clay Co 37

Hammond Iron Works 37

Mine & Smelter Supply Co.. —

Pacific Tank & Pipe Co 50

Redwood Manufacturers Co. 28

Travlor Eng. & Mfg. Co 45

Union Iron Works Co 12

Zinc Dust and Shavings

Atkins, Kroll & Co 26

Braun Corporation, The. ...25
Braun-Knecht-Heimann Co. 25

Denver Fire Clay Co 37

Roessler & Hasslacher Chem-
ical Co 10

MINING AND SCIENTIFIC PRESS

July i. 1!IU

Su ceeding Trenton Iron Co.

Tmencan
fteel & Wire
bmpan/s

Gardner Crusher and Pulverizer

For Laboratory Work

NO matter what the contour of the
ground, we will construct a tramway
that will transfer material in a bee-line
at minimum expense; and no grades are too
steep to surmount; no rivers or valleys too wide
to cross; and no grading, bridges or viaducts of
any kind are required. There is practically no
limit to the length of these tramways. We
have one line carrying ore twenty-one miles.

Write I'n imr oomplett descriptive book showing
every form of application. And we will be glad
to work upon propositions submitted to us, re-
turning full and complete specifications and cost*
of construction.

American Steel &
Wire Company

Pacific Coast Representatives

S. Steel Products Co., San Francisco, Los Angeles, Portland, Seattle

Chicago, New York, Worcester, Cleveland, Pittsburgh, Denver.
Export representatives, U. S. Steel Products Co., New York

This Crusher is adapted for grinding any
material, wet or dry, to any desired degree of fine-
ness, ranging from 2 S A" to 20-mesh and under.

For laboratory work it is especially desirable.
The hopper can be closed so that nothing will be
lost and it is built exactly like the larger machine,
with necessary changes for laboratory use. Small
power required. Easily cleaned and always re-
liable. Send for catalogue giving full information.

C. O. BARTLETT & SNOW CO.

Cleveland, Ohio

Shasta Region

UPPER
Klamath and Crater lakes

Hotels in Picturesque Surroundings.

Cottages with Hotel Service.
Camps with Log Cabins and Tents.

Trout Fishing

In Upper Sacramento, Pitt, McCloud,
Klamath, Williamson and Sprague Rivers.

RESORTS:

Shasta Springs, Lamoine. Sims, Sweet Briar,
Castella, Castle Rock, Castle Crag, Dunsmuir,
Upper Soda Springs, Shasta Retreat, Sisson,
McCloud, Klamath Falls, Pelican Bay, Eagle
Ridge, Etc.

Reduced Round Trip Excursion Fares.

Southern Pacific

• l"U

MININC AND 91 II Mil |l PR| SS

I :

You Cannot Have Pump Trouble and
a PULSOMETER at the Same Time—

The Two Don't Hitch

— !

1 *

**■ Vi?4iiwi9

Hul->oinctrr i..i.,ll..,l for pumplDJ Hashing water nt tin- Boddi Min. ■-. Bod' I

Wli Pulsometer never

requires lubrication or Foundation.
No engine belt, pistons, iacking, or
packing.

n ; muddy and grltt)

* iter without the illghteal quaver to II

.in

draining
mini ivatlng tallli

washing anywhere and everywhere thai
pumping la to be i lot

>li. work without a b
Vein may lower It, raise it. Bwlng ii about
without Interrupting lis steady, even
Bervtce.

Nor does it require any special holding
apparatus— any plank or tripod or rope
or chain will bold it.

Surely you want the Catalog of Fads— Write for it.

Pulsometer Steam Pump Co.

28 Battery Place, New York City

Taking a Kodak With You"

has become a habit with those who love
the free outdoor life such as is found in
Alaska. The result is that the PRESS
tells the story of the Far North with pic-
tures as well as pen. Of the PRESS staff
Mr. T. A. Rickard has travelled south-
eastern Alaska, the Yukon Vallev and on
to Nome in 1908. Mr. W. A. Scott fol-
lowed the same trail in 1911. Mr. H. F.
Bain studied southeastern and southwest-
ern Alaska and the Copper River coun-
try in 1911. Mr. E. E. Hurja, special
correspondent, who writes of Ketchikan
in this issue, is visiting both coast and in-
terior in 1914. In addition the PRESS

has special correspondents in Dawson and the leading Alaska mining centers.

-the editors know

News of Alaska printed in the Mining and Scientific Press is authoritative -
the country and the people and like both. Why not have the best?

Mining and Scientific Press, 420 Market St., San Francisco

$3.00 Per Year.

$4.00 in Canada.

$5.00 Abroad

MINING AND SCIENTIFIC PRESS

July 4. 1!'14

Regrinding in Closed Circuit with Dorr Classifiers
Requires No Pumps or Elevators

| I ty*

Tube Mill ■ IB'* 4-6"

SIDE ELEVATION ELEVATION OF FEED END

The above arrangement is now recognized as the standard method of operating a
closed circuit where an all slime pulp is required. The sand discharged from the Classi-
fier will contain approximately 25/? moisture, so it can be washed to the scoop of the
tube mill by a jet of solution and so diluted to any density desired.

We alto
Manufacture

THE DORR THICKENER and the DORR AGITATOR

All three of the above machines can be built acid proof for copper leaching and
other processes. Write now for catalogue and full Engineering data.

The Dorr Cyanide Machinery Company

cabie «M«sB: 735 Fir , t National Bank BuUding, Denver, Colo., U.S. A. Bil , UH """„, , _ .

Dorr, Denver Dorrclass. New York ° ' ' Bedford McNeill and Western Union

EASTERN OFFICE: 30 CHURCH STREET, NEW YORK CITY

GrotheA Carter, Mexico City. Gem ml Agents foi Mexico. N. Gutbridge, Ltd., Sydney, Genera] Agent for '

The D*irr Cyanide tfachlnen 9tn t, Londoi, England.

GOING EAST?

See the Grand Canyon of the
Feather River and the Royal Gorge

LOW ROUND-TRIP FARES FROM CALIFORNIA POINTS TO
EASTERN DESTINATIONS VIA THE

WESTERNPACIFiC
DENVER &PIO G RANDE:

SAMPLE RATES ROUND TRIP

New York $108.50 Montreal $108.50

Minneapolis $ 75.70 Quebec $116.50

Denver $ 55.00 St. Louis $ 70.00

Chicago $ 72.50 New Orleans $ 70.00

Corresponding: Low Rates to other Eastern destinations

SALE DATES

July 2. 3. 7. 8. 9. 10. 11. 14, 15. 16, 17. 20. 21, 25, 27, 28, 29, 30, 31.
An -list 3. 4. 11, 12. 17. 18, 20, 21. 25, 26, 27. 28, 29.
September 4, 5, 9, 10. 11.
Detroit only, August 25, 26, 27.

FINAL RETURN LIMIT OCTOBER 31st. LIBERAL STOP-OVER PRIVILEGES

2 Through Trains Daily to Denver, Pueblo, Omaha, St. Louis, Kansas City
and Chicago in connection with Missouri Pacific-Burlington-Rock Island

For full Information, Bates and Descriptive Literature upply to

TICKET OFFICES :

665 Market Street, Palace Hotel, Phone Sutter 1651 Market Street Ferry Depot, Phone Kearny 4980

1168 Broadway, Oakland, Phone Oakland 132

.Ink 4, I'M I

MI\IV. \\I) m II \||| |. l-KI SS

Searching
for Ore

is one thing; finding it is another. We find it.

We find it because the search is conducted in a thoroughly scientific man-
ner, eliminating every element of hap-ha/ard exploration. First our
geologists determine what part of the land is mineral bearing, and next,
our drill men make the borings there.

The work in the field is carried on by a corps of expert geologists and by drill men
trained to the highest degree of skill and efficiency. The work in the laboratory is per-
formed by assayers and chemists of recognized attainments, and is checked by consulting
geologists and mineralogists. The result is to give you, by definite methods, a definite
and exhaustive report upon the amount and grades of the minerals found.

E. J. Longyear Company, Minneapolis, Minn.

TRAYLOR IMPROVED-TYPE JAW CRUSHERS

Are So Designed and Constructed That the Cost of Operation is Reduced to a Minimum

WATER COOLED BEARINGS, which permits of
the continuous operation of the machine for months
without any attention.

ABSOLUTE ADJUSTING DEVICE, which regu-
lates the stroke and size of material without any
trouble.

MANGANESE STEEL WEARING PLATES and
HAMMERED STEEL SHAFTS, which tend to re-
duce the cost of wear.

THESE DESIRABLE FEATURES, together with
many others, are not confined to the larger sizes, but
are found in all our Blake Crushers, from the smallest
»)'•

CATALOG "G-2" ON CRUSHING MACHINERY
IT'S YOURS, FOR THE ASKING.

TRAYLOR ENGINEERING & MFG. CO.

Main Office and Works, ALLENTOWN, PA.
New York Office, 36 Church Street Western Office, Salt Lake City

-Ill

MINING AND SCIENTIFIC PRESS

July 4. lit 1 4

Pacific Stamp Stem Guides

Specify Pacific Guides for your new Stamp Mill and have it

up to date.
Rather than repair the present troublesome guides in your old mill,

replace them, a batters or two at a time, with Pacific Guides.
For you. Pacific Guides will mean a saving in monthly expense for

repairs and a reduction in your milling cost per ton of ore.
For your mill men, they will mean relief from all guide troubles.
It will pay you to invest in Pacific Guides.
Write for our special offer on Pacific Guides to replace old

equipment.

D. D. Demarest Company

503 Market Street

San Francisco, California

MARION

Shovels for Stripping

are rendering stead)' and efficient
service in every part of the world.
They are designed and built with
the idea that nothing is too good
to bear the Marion Name Plate.
That's why

A Difficult Job

Demands a Marion

and that's why a MARION stays
everlastingly on the job.
No matter where you are or what your proposition may be, we have a machine for your
requirements and we will gladly give you information on any of our products. Write us.

The Marion Steam Shovel Company, (Established 1884)

31 2 Yd. MARION Revolving Shovel stripping iron ore.

E. P. JAMISON & CO.:

Station B, Marion, Ohio, U. S. A.

San Francisco, Portland, Seattle, Tacoma,

Spokane, Vancouver, B. C.

Jul* 4 l"ll

MINIM. \\l) S< II Mil K I'KI s>

See This Booklet ?

Write for it !
It was compiled for You!

This 75-page booklet, showing ;ill there is to see about Perfkct DOUBLE CRIMPED WIRE CLOTH

i> yours for the asking.

Every Mine Superintendent should have it at his elbow — for it leads to substantial cost reductions.
In this book you can see why the wire in our screens is crimped before being woven.

The Llldlow-Saylor Wire Co., St. Louis, Mo.

LIDGERWOOD

STEAM

Mine Hoists

ELECTRIC

Up to 1000 H. P. * w»»» »^-» m -m. •*_»■ m k_^ m i^_^ Any Size

A GOOD MINE IS WORTH A GOOD HOIST

One Type ol Liilgerwood Friction Drum Electric Hol8tB

Lidgerwood

Reputation

Reputation is built upon
performance. For more than
forty years the reputation of
the Lidgerwood Mfg. Co., for
high-class hoists has been
built up and maintained by
the performance of the
Company's products.

LIDGERWOOD MFG. CO., 95 Liberty Street, New York, N. Y.

SAN FRANCISCO

MONAONOCK BLDO.

SEATTLE

ALASKA BLDO.

CHICAGO

FISHER BLDO.

MINING AND SCIENTIFIC PRESS

July 4, 1914

INDUSTRIAL LOCOMOTIVES

Reliability and constant service determine
the value of a locomotive. The prompt and
certain movement of material and the finished
product is important to prevent delay.

Our standard locomotives for industrial
service are built to insure reliability and con-
stant service. Only tested materials are used
in their construction. Interchangeability of
like parts is guaranteed, and long delays waiting for duplicate parts avoided.

AMERICAN LOCOMOTIVE COMPANY

30 CHURCH STREET, NEW YORK

[cCormlch Building. Chicago. Dominion Express Building. Montreal, Canada.

Carl G. Borehert, Pioneer Bldg., St. Paul. Minn. A. Baldwin & Co., New Orleans. La.

N. B. Livermore & Co., Los Angeles and San Francisco, California.

Korthwestern Equipment Company. Seattle, Wash., and Portland. Oregon.

They're Laying the Line Quickly

Lowering Root Spiral Riveted Pipe In 50 Foot Sections

Abendroth & Root Manufacturing Co.

Sales Offices, 45 Broadway, New York
Works, Newburgh, N. Y.

I! doesn't lak.- long to lay a line of Ro ii -I'irai Riv-
eted Pipe. The pipe section-* are so light and -

sally put together Into long sen -. and

these sections are so easily laid in the
trench that the pipe line Is completed In
short order, ai minimum expense and
trouble.

Lightness combined with greai
strength and durability are
good features to barnem
up to, when tho pipe

is for genera! inin-
Ing service.

That
Helical Seam

is what makes Hoot Spiral
Uiveted Pipe so strong.
It forms a continuous rib
from end to end. It give
added strength to every
point in the pipe.

Write for full particulars
and prices.

. I"ll

\tl\IV. \M) MINI II K I'KI SS

SIGNIFICANT

tu Mining in. 'ii i> id.- nun. Mm.-, mi. -Hi thai the Mine Safetj Appliance Company owned b) Meaai
II Deike and J. T Ryan, formerly safety experts of the U S, Bureau of Hinea, will he the Eaatern Rep-
.'.iti\.-* o( II \ Elmer, North American Agent for Siebe, Gorman & Co., Ltd . Manufacture

PROTO" MINE RESCUE APPARATUS

Tin- character of these men ami their familiarity with everj type of reacu luipmenl presupposes

tlmt the) hn\.' undertaken the new oonneotion with refere to their experience and investigation "t

the comparative merita of all rach apparatus manufactured,

Therefore their enlistment in behalf of PROTO apparatua will !"■ seen to be quite ;i^ much in behalf
te mining industry in the territorj the) «ill serve.

The Siebe, Gorman GAS ANALYSIS APPARATUS, manufactured ler the instruction of l>r. J, S.

Haldi «ill be sold hereafter in the Eastern territory bj Messrs. BimerA Amend, New Fork City,

r ntlj appointed mj Agents,

H. N. ELMER, 1139 MONADNOCK BLDG., CHICAGO

Sole American Agent for the Makers: Siebe, Gorman & Co., (Ltd.)

Eastern Agents for Proto Apparatus

MINE SAFETY APPLIANCES CO.

541 Fourth Ave., Curry Bldg., PITTSBURG, PA.

Eastern Agents for Gas Analysis Apparatus

EIMER & AMEND

205 Third Avenue NEW YORK CITY

lTffiYfELLMAH-5EMR MORGAN CO.

^^r R ^|ENGIMERS AND MANUEACTURERS^i 1 ^' ^ *

IVISIOHj

HIGH GRADE ELECTRIC MINE HOISTS

Purchasers of our

HOISTING MACHINERY

receive the benefit of our engi-
neering experience covering a
period of thirty years in building
equipment of this kind.

Clutches and brakes are operated
by air cylinders, and the brakes are
so connected as to set immediately
upon failure of air pressure.

Installed at the Mine ol the Tonopah-Bclmont Mining Co.

CLEVELAND, OHIO, U. S. A.

NEW YORK. Hudson Terminal. DENVER, 611 Ideal Building. MEXICO, D. F., Apartado 1220.

MINING AND SCIENTIFIC PRESS

July 4. 1914

LESS BOTHER AND UNCERTAINTY.
Continuous wooden stuve pipe is less bolher
to transport, nnd requires less labor and ex-
pense to lay it. Our wooden pipe will carry
more water and last longer than metal pipe.
Read the full story in "Wooden Pipe: Its
Many Advantages." Sent free.

GOLD STORAGE TANKS are used when
the solution from the leaching tanks holds
vegetable matter and fine slink in suspen-
sion. The floating hose draws oft the clear
solution from the top.

further data on pages 10 and i"7 in our Mining

Catalog No. 7. It i- mailed h

Pacific Tank and Pipe Co.

SAN FRAKCISCO:
PORTLAND, ORE.:
BOX 184 Kenton station

::ii'/J Market so t .i

LOS ANGELES:
loom «« Equitable Hk. Bdc

ALPHABETICAL INDEX TO ADVERTISERS

i — , INDICATES BVBRV OTHKlt WEBK lilt miintim . .DVBRTISBHEW

Pi
Abendroth A Ropi Mi. i
Alnaworth A Sons, William
A Ibany Lubricating Co. . . .
Alberger 1 'ump A ■ !on ' '■■
Allls-Chalmi i b Mfg. Co. ..

a merlcan I motive Co. .

A merii an Metal Co., Ltd. .
A merlcan Splra i I 'Ipe Wks
American Steel .v.- Win Co

Atkins, ECrolJ A Co

Atlas Car A Mfg. Cn

-
18

(l
::::
28

. IN

Bar] C 28

Bai i letl A Snow Co., CO

: & I- b I iptlenl Co, I"

Bi or, Sondhtimer & ' '« 20

II Co —

Blake, Moffil & Towne 28

Bri ..._■'■

i i . . i i . ■ . .. n Co. 25

1 :i oderiok & i (a s Ropi

Co :.i

rua i Company "l

Bufl Mfg Co II

I tuach - Sulzei Bros ■■ I i ■

Engine ■ !o 25

Butters Pat* at Vacuum Rl-
ter Co

Cameron Steam Pump Wks.,
A. s

Cary Spring Works 11

Chalmers A Williams 13

C lea go Pm n tli Toi »1 I !o.S3
Ah Com pri

Works —

Ch \ eland Rocs Drill Co. .. ::
Coast Mfg A Supplj Co. . . .30

< Colorado I Works Co. . . 51

Consolidated Min, A Smelt-
ing i 'o, "f Canada, Ltd. . 2G
Cooks Sons, Adam ".':

pelster Concentrator Co. . .—

i leister Machine Co "

t leane Steam Pump Co —

Demarest <*<•.. \ >. l> 46

Pa g<

i '• ning » '■>.. The 37

Fire Clay Co.. Ell

Q ii.i il/. Mill A.- < 'nisli-

i -ewey, Strong A Co ,36

i ilamond Rubber Co., The. .—
Dfxon Crucible Co., Joseph. 81

Mfg:. Co i»

i mil * Cyanide Machinery Co. i i
1 mi Pont de Nemours I 'ow-
der Co.. E. i

Vllen American Man-

■ ■>■■ Steel Co —

Elmor, H. X Lj)

i ';i ii 'hanks, Morse & Co —

ii. m % Mfg CO . S SI)

r & Son .... 28

General Electric i"" S

« iuldsclimldl Thermll Co. . . . —

fi Irl< I :.!■'. .

f3t. West. Smelting & Rel

i i.i in mond 1 1 "ii Works 3

Harding. I ' ■ i Mill Co. . i

Hardscog W lei Drill Co.

m Rlckard A Met ■

Back < '"\ .

I [ea Id's School of Mines . . . .2
i lendi Ic A Bolthod Mfg. A

Supply <\>

Hi.!', hun Works, Joshua .

Front Covi

i [utton .^- Co., E. I'" 3

Hyatt Rolli i Beai Ing Co, J

It-Rand ' '".

Internal Ions i Smelting Co

.ekekson h<ni Works, Byron. 29

■ * j ii. Iron Works ....:: i

Joltna-Manville Co., H. \v. .:;::

j .tli us. in Engl sring Wks. .27

.T us trite Mfg. Go —

Page.
Kell) Filter Press Co. 82

K bunch, Herman. Sr . i '

Krogh Pump Co —

La Id law- 1 Uinn-Gordnn Co,
Lam Mill .^ Machinery Co. 31
Leschen & Sons Rope Co., A. 29

Lldgerwod Mfg. Co it

Lletz Co., A ii

Lima Locomoth e < !orp -7

i in-, otl Drilling Co 28

1 1 « "i> . E, .T l-">

Ludlow-Saylor Wire Co, ■ . . 17,

l. hi Kin Rule Co 11

Lunki n hel mer I !o :: "

M.i rlon Si earn sii..\ el i
MeKlernan-Terry Drill Co

Mecse & Gottfried < ""

Back Co*

Mei i. ll Mlg. Co

Mi- nick Scale Mfg Co

Metals Buying & Ref Co. - ,
Mine .v- Smelter Supply Co.
M ineru is Sep A in. Syn, Ltd ■

Mounts i N ' 'oppei Cn

Mulconroy Co., Inc

'-. ■ ! Tubi Co I". M

New York Engineering Co. .39
Nordbei p Mfg. Co 30

Pacific Gear A Tool Co 29

p I ft i Tank A Pipe I 'o . 50
Painter Tra mway Co ol Sa n

Francisco

■ Water Wheel Co

Pi i i mi A Co., Win. R 2S

Phosphor Bronze Smelting

• '.. 28

Pierce. L. S 29

Powell Co., Win. 31

i 'm\\ .i .t Mining Machj . Co,
i 'reacol t Steam Pump Co.,

Fred M 31

Pulsometer Steam Pump Co. 18
Ptitman Bool A Shoe «'n. . . .27

i i, ■ i w i Man H facl urer -

Ulblet Tramway Co S3

Robins < lonvej Eng Belt Co. . 29
Roe bllng's Sons Co., John A 34
Roesaler A Hasslacher Chi m-
IcaJ Co 10

Salt Lake Hardware i '■•
San Fi q nclsco Pla i Ing Wks
Seal tie Machine Works ...
Selby Smelting & Lead Co

Smooth -l in Mfg. <'«■

Snow strain Pump Works.

Southern Pacific Co

Sts nda rd i ilamond I trill t '-•
Star I trilling Machine Co, .
Sui llvan Mach inei y Vo. . . .

Taylor- Wharton Iron .■* St. . -i

' !o J^

"i'ii pc on Bali ■ Co 13

Ti a s loi Engineering & M Eg.

Co 35. 15

Trent Engineering Co., L C
Troemner, I lenry LO

L"i !onsl ruct Ion Co 3jB

Union I ron Works Co 12

U. s. Smelting, Refining &

Mining Co -<■

r. S. Steel Products Co. . . .43

Van dei Nalllen School, a. . j::

Vogi I-, in A I '".. L

Watt Mining i '.' r W lieel • 'o.
\\'<-i1l;,- Mechs n U a I Fu rnaci

Wellman-Seaver- Morgan ' !o.

Western Electric Co

Western Pacific Rallwa;
Westfnghouse Electric &.

Mfg. Co

Wildbcrg Bros

\Si l-\ A Sons, John

Wilson .'v.- c't>.. J. C

Wood Drill Works

Worthingtont Henry R

Vniv A Townsend Co. .

> UbS ' 'oust rUCl ion i '.,

Inl\ I I'M I

\II\IV. WD -. || M || |, |.|<| SS

COLORADO IRONWORKS COMPANY

SMELTING ^ ( i ^ ORE MILLING
EQUIPMENTS Ji/j MACHINERY

• i- '

I!II4

Cyanide Plants

We have closely followed ever} development of the cyanide process since il was first
brought into use tor gold and silver extraction and have always maintained a foremost
position in the advance of that process to us present state of efficiency. We have
originated much successful equipment tor the economical handling oi ores during
treatment ami have designed and built numerous plants embodying the most approved
methods of operation. Our facilities, both as to engineering talent and manufacturing
equipment, are unsurpassed tor the design and erection of up-to-date plants.

Would it not pay you to contract for the design and erection of your plant with a
concern having an enviable reputation based on successful work performed and the
ability to construct and turn it over to you in record time f

We invite those now operating cyanide plants to submit any problems arising in their
work to us. We have solved many special problems in ore treatment and our ex-
perience cannot fail to be of value.

COLORADO IRON WORKS CO., Denver, Colo.,U.S. A.

Where a
railroad is
impossible

Your problem may not
be a swamp to cross
like the one shown.
Your hauling may not
mean the crossing of a
river, but in any event
your mine can make
more money conveying
materials by our one-
man tramway system.

B. & B. TRAMWAYS

are not expensive either, and our engineering
department will submit suggestions for a system
to meet your individual requirements. It means
no cost or obligation to get this information.

Remember, the rougher the country, the
more economical do B. & B. Tramways inva-
riably prove, in comparison with every kind
of surface haulage.

The sooner you write lor Catalog So. W, the sooner
you'll know what a B. & B. Tramway can do lor you

Broderick & Bascom Rope Co.

General Offices: 805-809 North Main St.

New York City

San Francisco — 72 Fremont St.

ST. LOUIS

Seattle, Wash.
New Orleans

MINING AND St [ENTIFIC PRESS

July 4. 1!M4

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SAN FRANCISCO

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CLUTCHES

CHAIN
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GEARS, Etc.

OUR STANDARDS

in Elevating, Conveying, Screening

and

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are the standards of the Coast.

WHAT HAS MADE THEM SO?

SAN FRANCISCO
660 Mission St.

LOS ANGELES
130 N. Los Angeles St.

PORTLAND

67 Front St.

SEATTLE

558 First Ave. So.

HOQUIAM

Lamb Machine Co.

VANCOUVER, B. C.
Pacific Building

COMPLETE STOCK AT EACH PLACE— ORDER FROM ODR NEAREST HOUSE

11 1"U

MI\IV. AND S< II Mil It PRI

MOST RECENT DEISTER DEVELOPMENTS

in Sand and Slime Tables

It will interest YOl' to learn
details of Our Latest Success.

•j We will be glad
to furnish catalog
«nd data.

Also investigate A
our classifier. /

itralur.
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INC. JULY 1912
Home Office : Shoaff Bldg., Fort Wayne, Ind. London Office : Salisbury House, London Wall, E. C.

THERE ARE NO STRINGS

tied to our trial order. The Mine Manager who keeps machines
at work which are only "fairly" efficient because of indifference, is
losing money and hurting himself and his profits

The high efficiency of

CLEVELAND DRILLS

enables us to propose a trial order where the only obligation which
you need acknowledge will be the obligation to yourself to employ
the best.

With our catalog in hand you'll
admit that CLEVELAND drills
' worth trying anyway."

are

Cleveland "Neverleak" Couplings Are Absolut ly
Guaranleed Agalnsl Leakage.

The Cleveland Rock Drill Company

6410 Hawthorne Avenue, Cleveland, Ohio

LosAnseles, Cal. ; Smith-Booth-Ushor n.mpony
Salt Lake City rtah: Palt Lake Hard ware Company
Ppokam*. Wash. : Fairbanks, Morse & Co.

Ishp. mind. Mich : I'. O. BOX 2M

Butte, Montana: Western Mining Supply

New York City: :to church Street

Pacific Coast Agent: C. E. Green, Care of The Emlgh-WincheU Hardware Co., Sacramento. Cal.

Mining and Scientific Press

ESTABLISHED MAY 24, f860

Vol. 109

San Francisco, July 11. 1914

No. 2

CONTROLLED BY T. A. RICKARD

PUBLISHED WEEKLY BY THE DEWEY PUBLISHING CO.
AT 120 MARKET STREET. SAN FRANCISCO.

Bedford McNeill (2 editions).

BRAXCB OFFICES:
CHICAGO — 300 Fisher Bd(r. T.I.: Harrison 1G20.
NEW YORK— 1S08-10 Woolworth Bdg. Tel.: Barclay 6169.
iN— The Mining Magazine, Salisbury House. E. C

ANNl At SUBSCRIPTION:

States an-1 I t'

Canada It

Other Countries In Postal Union 21 Shillings or Jo

111- \ - - - M.

as S M liter.

TABLE OF CONTENTS

AN IMPORTANT SERIES

We have Hie pleasure of announcing a most Important
series of articles upon present-day practice In Bine Bmelting,
prepared by Mr. E. H. Leslie, assistant editor- of the i

Hie lirsi of the articles is printed this
week. The whole series will [ncl

Zin. Smelting m Babtlesville, Oklahoma.

NATIONAI Zini Company. BartlISVILLI

[NSVTLLE Smbxteb ok tiik Babtlb&VTLLE Company.

Zini Smelting at Hillsbobo, Illinois.

Rose Lake Smfj h.r oi »» Gbanbi Company.

Ml.NEBAX Point Smelter at Depuk, Illinois.
These articles are based upon firsthand information col-
lected in the course of personal visits to the plants described
and have been prepared with the active cooperation of the
companies mentioned. They show how experience in the gas-
fields has led to redesigning of furnaces in the coalfields: how
introduction of flotation lias modified furnace work: and how
in a multitude of other particulars metallurgists have been
improving zinc smelting till it no longer deserves the repu-
tation for being a backward art.

Zinc ranks fourth in value among the metals produced in
the United States, being exceeded by iron, copper, and gold,
and in turn exceeding lead, silver, and the minor metals.
The spelter production for 1913. according to the U. S. Geo-
logical Survey, amounted to 337,252 tons. There are now :;l
line smelters operating, and two building. The plants vis-
ited by Mr. Leslie are among the largest and most interesting
in the Middle West. Several of them are here described
for the first time, and at each plant there are many things
to interest anyone connected with the zinc industry or with
metallurgy in general.

Readers may wish to refer to a previous paper by Mr.
Leslie on Mining and Milling at the American Zinc Prop-
erty. Joplin.' May 2?.. and the one on 'Industrial Hygiene as
Practised at Palmerton. Pennsylvania,' by Dr. John W. Luther;
chief medical officer of the New Jersey Zinc Co.. May 16.
Monthly summaries of Joplin and Wisconsin development are
also printed with weekly tabulations of metal prices.

EDITORIAL

Notes .- 41

Workmen's Compensation Insurance In California 41

ss and Politics 43

ARTICLES

Zim Smelting xt Babtlesville, Oklahoma.

By E. H. Leslie 44

is the first of Mr. L< - -. of articli

:i zinc smelters, aim. where. Bartles-

Is a natural-
i ilanl r.-w working mainly on flotation con-
centrate from Butte. The method of cllnkering the re-
tort residue is peculiar and is describe.] in detail.

In-i Prevention on mi Rand 49

■: sprinkling tailing heaps

with salt solution I by E I. Bosqul

SlDKRITK AND SULPHIDES IN I.I llil'll IK OliK DEPOSITS.

By PI !,u Argall 50

scrlptlon of important

orebodles long overlooked, though occurring In the

the worlds greatest mining districts.

Siii. nvi Mi n in., .it- Okhiuiiiks. By DOUfflat }Yaterman.. 54

How the tonnage ami how to calculate

the ' i ndle.

Mixing in Spain 56

The New Ai boba Mill, By An Occasional Contributor 57

Details of ., new mill using heavy stamps, tube-mills,
slfiers, and Tren

Si u pi.k .Mink ACCOUNTS 60

Kennedy Extension-Argonaut Decision 61

Full teNt of an important decision regarding apex rights
on tiie Mother Lode in California.

Pbodui 1 1. in anii I'sks of Tungsten. By <>. ./. Bteinhart. ... 64

DEPAIiTMllSTs
DlS< i SSI0N :

Tin Mining in Tasmania. By James B. Lewis C4

Con. ini it \ 1 1 ■-: 67

w oi Mining: Special correspondence from New York.
Toronto. Wrangle, Wisconsin. Yerington. Guadalajara.

Bulawayo, Johannesburg, Melbourne 68

The Mining Summary 74

Personal 78

Si hooi - AM- Societies 7S

Tin Mabket Pi mi

Stocks and Bonds 79

Metal Prices 79

Mineral Statiktii -;

Copper Producers' Association Report no

Coal and Coke Production

Company Repobts: International Nickel; Hampden Clon-
cun-y: Lucky 1 nation; Oroya Links: In-
spiration; Mt. l.yell SI

Recent Patents 83

Rei ini Publications Si

New Machines »nd Devices:

A New i"se for Belt Conveyors n4

Autotraction Drill Rigs n4

An inder to Volume 108 has been prepared and mill be sent
on request.

.luh II 19U

IING \v ITIFK I'Kl SS

EDITORIAL

t:in ;•.;.■( i;

i \i i o.\ i i;nu

III.,- . ■ -

M V.

T \ I ; I • ' k \ 1 : 1 > I
EDWAHD WALK1

A W '

\ UMtln

n In

Till". Circuit Court of Appeals at San, Pranoiao
affirmed us decision in the caae of Minerals Sepan
in m. Ltd., mea M. Hyde, on -Inly ii. Minerals

Baparation now lias sixty 'lays within which to move in
the matter of getting tin- caae before the United States
Supreme Court.

REVIVAL "f "III mining properties by modern meth-
- !■- a subject which is engaging increased atten-
tion by mill.' operators. The Secretary of State reports
tin- revival of 43 companies in California during the
Brat sis months of the year, with a total capitalization
..f (22,978,500. In the current issue we record the re-
criii revival of mining ai Aurora. Nevada, and detail
ilu- milliner practice. Old mines, like "Id tailing dumps.
are often worthy of investigation and many of the
mines of the future will doubtless be mines of the past.

JOHNSON once said that a man ought to read as in-
clination leads him, for what be reads as a task will
do him little good. Granting the wisdom of the re-
mark, the inclination can yet be guided so that at the
end of each year a man shall feel himself possessed of
wiiKr knowledge of every subject than he had at its
beginning. There is no easier way to acquire true cul-
ture than by thoughtful reading of the best books on a
wide range of topics. Engineers often rank high as
golf players, stamp collectors, or the like ; they might
even better rank as distinguished amateurs in political
economy, public finance, sanitation, public hygiene, or
some other useful subject, just as Dr. James Douglas
is a well known authority on the early history of New
England, and Mr. H. C. Hoover the leading authority
on the early history of mining.

RADIUM INVESTIGATIONS by the United States
Bui.au of Mines at Denver, noted in an editorial
of May Mil. have recently resulted in the application
for patent, by Mr. Richard B. Moore, for a process for
the extraction of refined radium salts. The process is
reported to be in successful operation at the South Den-
ver plant of the Bureau and will be given to the public
for free use. It is stated that this government plant
will be able to supply American hospitals with radium
salts in the near future. "While out of 972 cases treated
by the Radium Institute of London in 1913 only 56
were apparently cured and 183 improved, physicians are

still hopeful, and a more thorough study of the element.

- hoped, will redound to the good of humanity,

nOURTH OF JULY at Ely was celebrated by mine-

and tiist aid contests, which were held under
the auspices of the Dniveraity of Nevada. The interest

and enthusiasm aroused by thes ateata is reported as

aving equalled that formerly displayed in drilling i-

ud foot races, The 'safety Brat' movement, which
was inaugurated in Nevada sometime ago and resulted
in the organization of a stale association for its advance-
ment, is producing results and it is gratifying to note

the hearty support which the mine operators are giving
this movement.

WORKMEN'S COMPE\SAT!<>.\ I.YSUIiANCE I.\
CALIFORNIA

As we noted last week the '.Mine Owners' Casualty In-
demnity Exchange' lias been formed to afford to mine

operators a means of insuring themselves against terms
of the 'California Workmen's Insurance and Safety
Act.' We have frequently discussed this Act and the
unequal manner in which it bears down upon mine
operators. While there is little disposition among the
latter, even in the face of what they justly feel to be un-
fair burdens, to question the soundness of the general
principle that each industry should carry its own bur-
Ins, there is a widespread feeling that in mining, no

way has 1 n yet provided to distribute those burdens

equitably.

We have had frequent conferences with the Industrial
Accident Commission and can assure the mine operators
that the Commission shows every disposition to afford
them such relief as lies in its power. As we pointed out
January 17, the funds placed at the disposal of the
Commission by the legislature are inadequate to permit
it to carry unlimited liability on mines, and any other
insurance is unsatisfactory. It was at first hoped that
it would be possible, with the friendly services of the
( 'urn mission, to establish a separate fund for mine in-
surance on a mutual basis; the Commission doing the
work involved at cost. Legal advice was, however, to
the effect that any such fund, if under control of the
Commission, could not be maintained in the face of any
shortage in the general fund due to a catastrophe in
another industry. In the end, the state must make pro-

MINING AND SCIENTIFIC PRESS

July 11. 10H

vision permitting the Commission to offer insurance to
the small operators, or the development of new mines
will be greatly restricted or cease altogether. The larger
operators can, and should, combine in a mutual com-
pany and carry their own risk at the same time that
tln-y establish their own inspection service, so as to per-
mit a risk-rating system to be evolved. In the absence
of any such general association, and the fact that the
law itself cannot be amended until the legislature meets.
indemnity exchanges seem to offer the only possible
means for reducing the premiums. That the COS
present is too high is evident from a number of circum-
stances.

The cost now varies with the nature of the work. We
have collected figures covering $5,112,870, estimated pay-
rolls for 1914. The average rate paid is a trifle over 6

per rent. The greater number of mining companies arf
carrying their own risk. Of 71 mines reporting, 29 are
insured, 27 not insured, and 15 failed to state. Of
mills and smelters the figures arc: reporting. 35; in-
sured. 20: not insured. 1-1: not stating. 1. At the mines
Otal pay-roll insured amounted to $782,276; and
the non-insured or not stated. $2,111,505. The average
pay-roll at 58 mines amounts to $49,893. At the mills
the insured pay-roll amounts to $272,034; the non-in-
sure, 1 or not state, 1. $747,520. The average mill pay-
roll is $29,987. By branches of mining the figures are:

Pay-roll. Rate. Insurance.

Mining in general f2, 596,118 JT.s,; $204,055

Hydraulic and dredging... 1.382,626

Mills and smelters 1434.126 3.15 '-'

$5.11. $6.17 $31

It is impossible to say exactly what the real cost of
the insurance is. While we have returns from a large
number of companies based npon their accident rate in
th- past, it must he admitted that thi ds have not

always been well kept and that past conditions no .
obtain. One notably liberal and well managed company
operating two mines and with a total pay-roll of about
a half million dollars, found the total cost of compen-
sation, medical, and hospital service at one of its mines
to be L >:; 4 per cent in 1912, 2.65 per cent in 1913, and at
tin- other mine 1 per cent. Its officers estimate that
under tie- new law the cost will be approximately the
same. Another mine with a pay-roll of $158,179 found
the cost under the Boseberry act in 1913 to be $6190,
and estimates that under the new law the cost will be

12 ' 4 times as much. Other figures might be quoted, but
their variation causes hesitation in accepting them as a
guide, though it is to be noted that none of them even
approximate the rates asked by the insurance companies.
Perhaps a better basis for figuring is an estimate made
by an experienced insurance man. based upon operations
in California and covering ! 000 in pay-rolls. Ap-
plying to the accident record covered by this pay-roll
the terms of the present law. the cost of compensation
was estimated i We have had no opportunity

to check these figures, but so far as data are available

to us they tally. It will be noted that less than one-
third of this pay-roll would produce more than the total
sum in premiums, at the rates actually being charged.

Another reason for believing that California mine
operators are being overcharged, is the experience that • I
man] of them are having as mine owners in Nevada.
e the figures for the first 10 months operation of
the Nevflda law. in our issue of June 27. It is unneces-
sary to repeat, but with a base rate of 2.2 and a maxi-
mum of 3 per cent, the insurance fund is meeting all
claims and building a surplus; and in Nevada the bulk
of the business is with the mines. It is true that the
terms of the law are not identical with that in Cali-
fornia, and it is possible, as urged by insurance men.
that adequate provision is not being made for the catas-
trophe risk. Time will tell as to this, but in California,
so far as the workmen are concerned there is some ques-
tion whether the cost of a catastrophe would be met by-
some of the insurance carriers. California laws give to
the Insurance Commissioner Limited powers, and the In-
dustrial Accident Commission has taken the ground that
as one branch of the government of the state it should
not question the action of a coordinate branch in per-
mitting an insurance company to do business within the
state Whether the insurance be good or bad. the
operator is protected; though possibility of an attack
upon the constitutionality of the law lies in the power
under these conditions to do away with the workmen's
fundamental right to compensation for injury, without
nsent. That again is a problem for the future. It
is only important at the moment in connection with the
fact that the new form of insurance, represented by the
indemnity exchange, is now available to California
operators.

Under the plan of the exchange the insurance is
ried mutually by the companies or individuals forming
it. The rates paid in are the same as tl regu-

lar companies and in addition notes, securities, or cash
equal to an extra premium or a defined part of such a
premium, are deposited with the exchange, to meet a
contingent risk. From the sums so accumulated a per-
centage, in the case of the concern mentioned amounting
to l'ii. is taken to cover the cost of conducting the busi-
Next the losses are paid, and the necessary reserve
set aside to cover future payments on these losses. The
remaining funds are periodically distributed in the form
of dividends. The total liability of any person or com-
pany in such an exchange is limited to the amount of
two annual premiums. The final cost of the insurance
is his due portion of the actual loss met by all members
of the exchange, and the sum mentioned as paid for
general expense. If he insures with a regular company
he pays one premium and gets no refund. If he joins
the exchange he risks two premiums and gets insurance
at ,-ost plus 20 per cent. Since regular companies pay
that rate, at times more, to agents who solicit the busi-
ness, the member of an exchange gets his insurance for
cost and makes the solicitor do the work.

•l.il* 11. I'.'U

MINING II Mil li I'KI S3

i :

Al II triii- of nil institutions then- nn- draw hacks In
the lirst place tli'-n- lias been QO •.[..-, ili.- decision il

fornii Sect thai such exchanges constitute in

■urance carriers - relieve their membere of all

farther liabilitj In ■ few states it haa bean held thai
there is still a contingent Liability, but, as always, it La
needful to be careful in drawing conclusions, since the

various stati- laws differ, as well as do tin- OOUTtB [n

California there in an especially strong presumption in
favor of the exohangea since tln-ir organisation is spe
rifically provided for by Lav There is the further fact,
already noted, tliat the Industrial Accident Commission
is not disposed to go behind the faol thai a company or
an exchange has been authorised to do business l>y the
insurance department of the state. As a matter of fad
snob exchanges are now in operation in a number of
industries.
Tin' second danger is that membere of an exchange

must work through a person or persons who an- con-
stituted 'attorneys in fact, 1 Under terms of the insiir

ance contract These men handle the funds ami eon-
duct the business. In the ease of the 'Mine Owners'

Casualty Indemnity Exchange,' they are young hut ex-
perienced insurance men who are in the business, prop
erly enough, for profit. Provision is made for an ad
visory hoard of three members of the exchange which
lias Large supervisory powers. Presumably they will be

mine operators, and if til.- results of the exchange prove

unsatisfactory they will he to blame, since the three will

have a elear majority on the hoard. A further safe-
guard is the right of cancellation which is reserved to
each exchange member.

Mine operators having shown no disposition to or-
ganize a mutual company to care for themselves, ex
perienced insurance men offer to form auch a com-
pany, operate it on a limited ratio of cost, and permit

its members to have a majority upon what will con-
stitute for most purposes a board of directors. Tins
warrants investigation.

Bl SIX Ess AM) POLITICS

In a sane ami conservative exposition of the relation
of business to polities. Mr. F. A. Vanderlip, president
of I lie National City Bank of New York City, in a re-
eeni address before the New York Hankers' Association.
presented a statement of facts and conditions bearing
on the present so-called psychological depression which
sums up the present condition of business in the United
states in an admirable manner. His appeal to the bank-
ers and business men to get in closer touch with the
economic and political tendencies of the day and to di-
rect their energies more to guiding and informing
rather than obstructing is most laudable.

There was a time when the outlook for business was
gauged by production statistics, distribution of products
and manufactures, by the state of the money market,
by records of the accumulated stocks, and by the condi-
tion of credits. With such statistical data of business

in hand ami correlated, it was not impossible to
a fniri\ .. radiation of what the future had in

twelvemonth. Tin- statistics of buainea

II measure of the buiini -s OBtlook It is almost siartlnik'
i.i noi.- how far from tun- that is today, and how impor
taut has luce the advent ilmus factor of legislation ami

ilive tendencies It is no longer possible to

ure the outlook ill tin- terms with which business men
are made familiar through their daily routine The
•il A'. ■ ord La crowding out of it >, p|a f im-
portance lit, Financial Chronicle, ami tin- public is
watching and waiting for executive ami congressional

action rather than the comptroller's abstract to measure

the status of industry Mr. Vanderlip Ul .\

ample of this feeling on tin- part of tin- public, the fad
that the attitude of mind of the interstate Commerce
Commission has beco more important than the statis-
tics of railroad traffic; tin- amount of our foreign trade

is studied to learn the effect of changed tariff law rather

than of trade tendencies. Reports of the attitude of
mind of the Attorney General vie in interest with the
crop pre, li, -lions of tin- Secretary of Agriculture; inves-
tigations by bureaus, commissions, or Congress form a

more important feature iii gauging a market outlook
than do the plans for development or expansion formu-
lated bj the executiv omittees of corporations.

The factors which appear uppermost in the minds of
tin- business interests of -the nation are what is going

to in- the effect of new- legislation, what new laws are to

acted; not what is the prospect of crops Inn of

congressional action. It, therefore, seems reasonable
that so Long as tin- public looks with fear ami trembling
to the action of commissions and governing bodies, rather

than to natural Conditions, the present inertia will con-
In - -Mr. Vanderlip slates a belief that if business

men will gel themselves into a slate of mind where they

view conditions broadly, with a historical ami social

sense rather than only from their individual point of
view, they will apprehend better the direction iii which
the whole current of political thought is flowing and
will feel less impatience with the legislative movement
and vastly less pessimism concerning its results.

As a result of Mr. Vanderlip 's plea, a publicity

mittec has been appointed whose purpose will he to en-
lighten and direct public sentiment rather than contend
with it. No good can be attained by quietly sitting by
and railing at Washington. With a iMHI.diio noD.hushel
wheat crop and a statistical position of industry which

si Id warrant a prediction foi prosperity ami imme-
diate expansion, there appears to be a psychological
phase to the present depression. While this condition
may be intangible, it is never! lieless real: a restoration
of confidence in what the future has in store and a
realization that industry is not being plotted against
by the executive and legislative heads of our govern-
ment, while it may not be a solution of the difficulty,
would undoubtedly strengthen the business position and
remove some of the obstacles from the channels of prog-
ress.

MINING AND SCIENTIFIC PRESS

July 11, 1914

OEKEBAL VIEW OF THE RARTLESVII.I.E SHELTEBS, SHOWING Till: NATIONAL

By E. H. LESLIE

The Oklahoma gasfields murk the apparent last stand
of the natural-gas zinc smelter, and while the days of
such plants are by no means numbered, unless un-
expected discoveries are made in this or other localities,

the time is not indefinitely Ear off when the zinc smelt-
ing interests must abandon the present natural-gas belt
and seek sites convenient to permanent t'uel supplies
and reasonable freight rates. At the present time the
coal districts of Illinois are most favored, as they have
been since the beginning of the industry in this eountry.
but the latest zinc smelters are being erected farther
east, in Ohio and western Pennsylvania,

Fuel is. of course, the keystone upon which depends
the life of the smelter. At present there is no shortage
of gas at Bartlesville and there are three smelters in
operation: the Bartlesville Zinc Co. and the Lanyon-
Starr Smelting Co., both subsidiaries of the American
Metals Co., and the National Zinc Co., which is con-
trolled by Beer, Sondheimer & Co. and E. 0. Jacobsen.
The future gas supply is uncertain and as a result the
plants have not that stamp of permanency which char-
acterizes the new producer smelters of the Illinois coal
districts. Improvements and upkeep expenditures are
kept low, since no one knows upon what day there will
be no more gas and Bartlesville will follow in the foot-
steps of Iola. In an effort to prolong the life of the
smelters, the Smelter Gas Co., a subsidiary of the
American Metals Co., has been organized and. bavins
leased large tracts of land in the vicinity of Bartlesville.
is exploring this ground vigorously for new gas deposits,
with some success. The gas consumption of the three
smelters when in full operation amounts to 23,000,000
eu. ft. per day. The Bartlesville Zinc Co. uses 9,000,000
cu. ft., the Lanyon-Starr Smelting Co. 6,500,000 cu. ft.,
and the National Zinc Co. 7.500.000 cu. ft. per day.
While it is impossible to say how long this consumption
can be met, there is reason to believe that the end is not
yet in sight and a long period of activity is anticipated.

The Bartlesville smelters are situated about one and a
hair miles southwest of Bartlesville. The smelter sites
lie on the north side of the right-of-way of the Missouri,
Kansas & Texas railway lines, from which private sidings
have been laid for the unloading of ore-cars and supplies
ami shipment of spelter. The town of Bartlesville is 75

miles from .Toplin. tli atre of the zinc mining industry

of l he Middle West ami from which the smelters in the
past have received the bulk of the concentrates treated.
The topography of the smelter sites is generally level,

with s e depressions which have been filled with retort

residue and others whieh at the present time are being
used for dumping ground and will afford dumping space
for years to come.

Bartlesville No. 2 Plant

Tie- ground plan of the Bartlesville Zinc Co.'s smelter,
whieh is shown in the accompanying drawing, shows the
arrangement of the buildings. The compactness of the
plant and favorable spacing of buildings and furnaces
for short hauls, with little or no available space wasted,
is apparent. The general view of the plant, opposite,
shows the character of the buildings and furnishes an
idea as to the magnitude of the works. In addition to
the standard-gage railway turn-outs, the plant has ade-
- quate narrow-gage industrial track for the handling of
charges, pottery, residue, spelter, and smelter supplies.

In the past the smelter was operated largely on Joplin
concentrates, but at the present time the bulk of supply
is a flotation product from Butte, with some Joplin, Colo-
rado. Needles, and Mexican ore. The concentrates are
received at the plant in ordinary freight cars and un-
loaded by hand into the receiving bins in the ore-house
at the northwest corner of the property. The ore-bouse
is divided into compartments for the storage of various
grades and kinds of concentrates. The bins are flat-
bottomed with wooden partitions and are underlaid with
steam coils which are used for reducing the moisture in

.1 I » 1 % II l"l I

MINING \M> II Mil I. I'KI SS

HSC COMPANY, LANYON STARR, »\n BAKTU8VUJJ \

tin- concentrates ^ received. The bins are on the ground
level, and in removing concentrate it is necessary to
kIiii\i-I it into barrows, in which it is taken to the crush
iiiLT and drying department
Two circular dryers are situated in a wing < >t" the old

roaster house containing the thi iginal furnaces,

wliili- another dryer of the same type lias i n installed

in the new roaster house, which contains two additional
furnaces. The concentrate, which is usually .-i mixture

of Colorado and Butte ores, is fed at tin ntre of the

dryer and moved by revolving rabbles to the periphyry

where it is discharged through chutes into the I I of

a bucket-elevator. The bucket-elevator discharges into

a 4-mesb trommel screen, the oversize from which is
returned t" a pair "t' 24 in. rolls, while the nndi
is taken by a i»-li conveyor to the superimposed
feed bins of the Zellweger roasting furnaces. The dry-
ing capacity of the smelter is no) sufficient tor handling
the entire roaster feed, with the result that during the
daj shift undried concentrate is shoveled directly npon
the feed end of the roasting furnaces and both drying

1 roasting is done by the Zellweger roasting furnaces

during the day shift. The dryers and crushers are
operated by a 50-hp. General Electric motor operating
on a 110-volt circuit.

For roasting sulphides, five of these furnaces are

THE BARTLESVILI.E NO. 2 SMELTER.

MINING AND SCIENTIFIC PRES3

July 11, 1914

used. This type of roasting furnaces has round con-
siderable favor through the Oklahoma gas smelting 'lis
trict. The furnaces are of the mechanical reverberator;
type with hearths 150 ft. long and 15 fi. wide. Tin- rab-
bling or raking mechanism is tin- special feature of this
lype of furnace and consists of a number of V-shaped
steel cups which arc mounted radially on a heavy shaft
with cog-wheel supports connected by wire cable with
the driving machinery. The wheels rotate on tracks
in wheel pits at the sides of the hearth and are some-
protected by an apron which is suspended from
irch and thus protects the wheels and driving

end. while on the return to the feed end the charge is
moved hut little and only a plowing effect is obtained
by the rabbles moving over the hearth. The racks, which
serve as track for the support of the rabbles and cause
the mechanism to move uniformly through the furnace,
are air-cooled hy an air-chamber below them and the rab-
bling mechanism is air-cooled as it passes out of either
end of the fcirnaee. where it remains for a minute and a
half before the return trip through the furnace. The
ends of the furnace .nv closed with hanging walls and
sheet-iron suspended doors as shown in the halftone.
The furnaces, as operated at the Bartlesville plant, will

I'M

building.

1 t

Lime

Wash house

nter-shop.

I 'ell.

•>]

11.

storage-oli

:■::

PLAPS ol BARTLESVILLE No. 1' SMELTER.

Blacksmith

Mixing house.

Boner- ho

Engine- 1 oom

2 ,

i and sampling ho

i ire-bins.

si .'..-I bins a sted ore.

Tile and si ■-! stacks.

::i

Ore-bins.

Rotar j 'ii

Zel Iweger roasting Curi s.

Retorl Furnace iilocks.

Hose-house and 10,000-gai stor-
age tank.
1 1 eproof room for lire pump.

Ash elevator.

Barn.

Earth-bank reservoir.

Pipe-line Crom Sand creeR C1H
miles awa

iiisni from the intense heat of the furnace. A

Qash-light photograph of the interior of a Zellweger fur-
nace nt tic Neodesha plant of the Granby .Mining &
ag Co. is shown opposite. This furnace is
a typical Zellweger roasting furnace and the rabbling
mechanism and the Mass of construction is seen from

the illustration. The rabbling eups are lifted to collars
which are mounted loosely on the shaft ami a locking
device holds them rigid or allows them to turn on the
shaft according as to whether the passage of the rabble
wheel is from the feed to the discharge or from the dis-
charge to the feed end of the furnace.

By this means the charge is uniformly picked up by
the cups, raised, turned, and moved forward as the
rabbles pass through the furnace toward the discharge

treat ::<i tons of concentrate per day re. hieing the sul-
phur content in the roasted product to about one per

cent. The temperature of the Eurni s is kept at about

1000°(\ Tie- roasted concentrate is discharged from the

end of the hearth hy the rabbles, which move the charge
every six minutes. It falls into steel cars and is re-
moved to sleel Storage bins. The furnaces arc equipped
with ID gas burners on each side. The four burners
nearest the feed end are % in.; these are followed hy
three l -.-in . and three %-in. burners, making 20 burners
to each furnace. The rabbling mechanism is driven by
a 12%-hp. General Electric motor operating on a 110-
volt circuit, each furnace Inning an individual motor.
The motors are equipped with automatic starting, stop-
ping, and reversing device for regulating the travel of

11 I'M I

MINING \m> 9 I: Mil l< rui SS

the rabbles through the furnace, <i simple hydraulic da
rice being used tor thia purpose Combination till

barge the furiiiiio gaaea Into the atmoa

When the furaaoes ar.- being fed with dried

ins. the feed in auto

being tripped upon each passage <>( tin-

rabbles through the furnace and the t I falling .li

recti) upon the hearth.

used in the miring room is brought fi i

the Pittsburg, K Id together with Rome Arkan-

mi-anthracite, It is delivered from the railway
..I bins, which are
.iiiinil,\ situated with rela
tion tn tin' mixing housi and cen-
trally placed with reference to
the furnace buildings, :*- shown
in the plan of the plant. Bere
the roasted sulphide, carbonate,
and fuel are mixed in a concrete
mixing machine, and the mixed
charge elevated t<> bins from
which it is drawn into the charge
- ami moved over the indus-
trial tracks ti> the furnai

The original smelter plant rum.
prised six 1. Inrks of retorl fur-
which three additional
blocks have been added. The Eur-
naces are a modified Hegeler
type 100 t't. long and adapted to
natural-gas fuel. The furnaces
consist of Is sections on each side
of the block, with 16 retorts to the INI

section in four rows, making 1 >NS

retorts to the side, and 576 retorts to the block. The
plant, therefore, comprises 51S4 retorts in the 9 blocks
of furnaces. Air and gas is admitted at the front of the
furnaces at each section, a practice which in some of the
more modern natural-gas furnaces has been replaced by
using a 'blow-hox' at each half-section. The Eurnaces
are of the cellar type. The retorts used are 50 bj 8%
inches inside dimension and are made, together with the
condensers, at a pottery on the grounds. As has come
to he standard practice in the United States, oo prolongs
are employed. The average life of the retorts at this
plant is about 30 days. Air for the furnaces is supplied
by a blower in the engine room and conducted to the fur-
nace blocks through a galvanized iron pip. -.line and dis-
tribution system. Under present operating conditions
there is charged from 14.500 to 16,000 lb. of roasted on

to the side per day or about 150 tons of raw otrate

for the entire plant. The extraction of the zinc is about
85% of the charge assay.

The furnaces are about seven years old and in a good
state of preservation. Blue powder is added to the
charge in the last two sections of each block and a tem-
perature of about 1400° C. is maintained. About three

lii-d in charging

. in I'll.- lirxt draw in 1 p in the BM I at

p iii . and tin- hist a I. oil! I a in It of II

■ut i IS ■] ■ Iter to ill.- aide, the

Iran producing aboti
the last l". The Aral metal drawn, being diNiiii-

ureal temperature, in the purest, ami

'extra •elect' in 56-lb. molds The regular run of the

furnacM in cast in 'J' 1 lb molds. The retorts are drawn

I), ladle suspended from a crane in a movable

carriage, which ladle is swung under the condensers and

operated by a hand winch The Oxide <>r 'blue powder'

I-- shniii I off and shoveled aside for n

During drawing operations the drawman is protected

by a shield on the draw carriage from the heat of the fur-
nace. After tie- hist draw, (he residue is removed from
the retorts and falling through a chute in front of the
retorts is collected in industrial cars or pans below the

furnace. Steam is used for cleaning the retorts, the
n-ater being immediately converted into steam upon en
lering the retort. The water-line and hose connections
.ire in front of each side. Any slag adhering to the re-
torts is removed by scrapers. In cleaning the retorts
the man operating the hose is protected by a shield
which is suspended from a rail on rollers and is easily

ved along the furnace. Twenty n are employed

per day on each block.

Treatment of Retort Residue

The treatment of retort residue presents some inter-
esting features which have been developed at this
smelter as a result of the treatment of the Butte flota-
tion concentrate. In thai the residue contains silver in
commercial quantities, a large amount of experimental
work was necessary to develop the best method of re-
covering the silver and it has resulted in the 'clinkering

MINING AND SCIENTIFIC PRESS

July U, 1914

process' by which a blast-furnace material is made at
the plant and shipped to Colorado smelters. The pro-
cess consists in reducing the carbon content, which is
upward of •i |l '< . and the formation of clinker.

Construction op Heaps

residue is removed from the furnaces in steel
industrial cars and run oul over an elevated structure
own in the halftone m a site to the north of the
smelter, where it is dumped and shaped into roasting
heaps. In the building of these heaps a bed of residue
2 ft. thick is spread oul into a square of from 20 to 30
It. on a side, nml upon this hod, brick-work air channels
are constructed A plan and sections arc shown in the

of i linker bearing silver results. This clinker is then
cooled, broken, the brick channels removed, and the

product shipped to Colorado furnaces.

The pottery plant at which the retorts and condensers
for the Company's use are manufactured is equipped
with a Mehler retort press, and pug-raill, an augur
condenser machine, and two small Ft. Scotl pug-mills
for pugging condenser materials. The crushing ma-
chinery consists of one 12-in. Blake crusher, one set of
24-in. and one set of 16-in. rolls, and screens. The re-

torl material is ground to 5 mesh. St. Louis clay is
used for retorts while the condensers are manufac-
tured from a 1 to 1 mixture of clay and old retorts.
The clay is unloailed from freight cars inio the clay-

BRICK-WOBB nil: CLtNKERlNG-HEAPS.

accompanying figures. One main air channel is laid
through the centre of the bed and this channel is banked
with dirt to prevent clinker from adhering to brick-work.
From the main channel, branch channels are constructed
at right angles extending to the edges of the heap. Eight
of these branch channels are laid to allow- the air to
escape and bo evenly distributed, thereby producing a
uniform blowing effect throughout the heap. The ends
of these branch channels are connected in the large
heaps as shown in the plan. The main channel is con-
nected by pipe with the main air-distribution pipe and
this is connected with a blower which supplies air for
all of the heaps. When the brick-work has been com-
pleted it is covered with residue, the air is admitted,
and the heap is fired. The heap is then added to until
a height of about six feet is reached and it contains
about 400 tons of residue. The roasting or burning
process is kept up for approximately 40 days, when
the pile will be reduced to less than one-half its original
size, the carbon reduced to almost nothing and a mass

ti bl

3et - o.~* c o'

bins, where it is weathered from three to six
months. After the first pugging it is cut into
short cylinders as it comes from the pug-mill
and again stacked for about a week, when it is
given the final pugging and put into the retort
press. The retorts are inspected as they come
from the press and sent to the drying rooms,
which are steam heated. They are then re-
moved from the drying rooms as the furnaces
demand, placed upon industrial cars, and taken
to the furnaces where they are finished in the
annealing ovens, there being one annealing oven
to each two blocks of furnaces.

The power-plant, which adjoins the pottery
building, is equipped with a 250-hp. Corliss en-
gine with belted generators, a 150-hp. Chase
compound, and a 120-ft. Garden City blower to
supply air for the retort furnaces. Natural gas
is used for fuel under the boilers. There is also
a fire pump with pipe connections to all departments of
the plant. The water supply is brought through a pipe-
line from Sand creek, which is a mile and a half south-
west. An earth-bauk reservoir 250 by 100 by 10 ft. deep
serves as a reserve water storage at the smelter. There
is also a 10,000-gal. steel tank for the smelter supply,
the water being pumped to this tank from the earth
reservoir.

The plant equipment includes about two and a half
miles of narrow-gage industrial track for the handling
of smelter products and a mile of standard-gage rail-
way sidings for the receiving of smelter materials and
shipment of spelter. A laboratory building is fitted
with all of the equipment necessary for making indus-
trial aualyses and determinations in connection with
zinc smelting. There are also machine and blacksmith
shops, carpenter shops, lime house, wash rooms, and
offices on the smelter site.

Due largely to the efforts of the present manager,
Archibald Jones, the smelter, after a somewhat dis-

II. T'll

MIMV. AM) N II Mil li I'K

v ]|> w iv mliw OF ' 0W8TB1

\ BOW 'ii nui's UMMr tllNKHUI'.

couraging beginning, is ;ii present being successfully
operated, and the development of the treatment of Butte
t1i-i;ttii.ii residues has constituted one improvement in
the smelting of zinc concentrate.

A simple but seemingly effective process for prevent-
ing dust-blowing from dumps has been placed in active
operation at the Perreira Deep. The originator of the
process is P. L. Bosqui, who describes the process as
folio ws: It consists of spraying the surface of the
dumps with the si inn- residue in the condition in which
it is ordinarily pumped to the slime dam and mixed
with about 100 lb. of salt per ton of two parts water to

one of slime pulp. The hygroscopic properties of the

salt prevent the crust from drying and cracking. It is

estimated thai it might be necessary to renew this coat-
ing three or four times a year at insignificant cost. The
spraying plant consists of a 40-ton cone-bottom agita-
tor to which the residue slime stream is diverted as re-
quired. From this tank the pulp is forced hy means
of a triplex Gould pump into a 4-in. distributing main
provided with hose taps at suitable points. The pulp
is sprayed on the dump by menus of a 4-in. hose and

about 4n in pi •

u Dimple and inexpensi
well I... effective it is n><i earl) to obtain
definite Bgurea as regardi mmp

lion, etc . u Ihi proport if salt, the thick

pulp, mid other details uill

laril) be titled in accordance with

experience.

The effect of the ipnying is to give the
dump a thin crust ti„. peculiarity of the

crust is that it is not so brittle as might I"'

expected. There is a degra plasticity

about it which is renewed bj the moisture in
the air. The hygroscopic or moisture-absorb

Log property of the salt in the spraying mix-
ture prevents the crust Prom drying and
cracking, it only remains to test the capa
bility id' tl rust to resist the disintegrating

influence of the high winter winds Should

they prove powerless to roh the process of its
efficacy, a great boon will have been conferred

upon the mine dwellers of the Kami. An esti
male of the cost of spraying the .lump places

it at the modest figure of a pennj per inn sip
it., or even less.

The hose is easily manipulated hy one or
two natives who can spray at a rate of COD

siderahly over an acre per hour, consequently

the ti taken tO spray a whole dump. Once

the equipment is erected, would be i osl

eases under ,i day. and in no Case would it
exceed two days.

The idea of adding brine to the slime was suggested

by F. -I. Trump, manager of the Perreira Deep, who
pointed out that salt is used in some of tin- colliery
districts in England for laying dust On roads. The
installation at the Perreira Deep cost under £1000.
The credit for being the first to apply the spray treat-
ment for the prevention of dump dust is due to the
Bast Hand Proprietary Mines, which has already cov-
ered the Driefontein dump with a coating of vlei mud.
which has proved very effective, but such mud is not
everywhere available, and. in any event, the use of
current slime which Mr. Bosqui has installed is cheaper,
simpler, and more likely to be universally adopted. —
('a in Imr i) Times.

The works of the Hydro-Electric Power & Metal-
lurgical Co. have been acquired by the Tasmanian Gov-
ernment, financial troubles led to this end. Hood
progress has been made with the pipe-lines and power-
plant, and within a year there will be 85,000 lip. avail-
able for mines and manufacturing plants.

Mineral prodi ction of New South Wales Eor the first
quarter of 1914 was worth £2,754,999, an increase of
t467,162 over the same period of last year. Coal and
silver-lead exports showed a large increase.

MINING AND SCIENTIFIC PRESS

July 11. 1914

By PHIUP AKCALL

-: lerahle economic impor-
table of the iron oris Even
nianganifer - - ■ in great demand

mu factum spiegeleis

value iu • - tieally considered, sider-

- !>erhaps the more important of the sedimentary

- .•{ which have been precipitated a>
honates and. tl • - sses, re-
arranged or redeposited - hematite. Much of

roti ore is now considered to have
■■_• in. 1 The hematite ore of Breece Hill
I^eadville. is in all probability derived
siderite. which is plentiful at depth even now in that
locality, and recently has been reported iu great abun-
dance in the Hopemore mine.

of iron has long been known as

an important mineral of Leadville replacement deposits

in the blue limestone horizon, particularly in association

-imary sulphides, and in ss - 9 '.utioo

cavities Over - s] mens from

.>:ercourses in the La Plata mine, partly

filled with manganese oxide, and reached the

that >'■ - - ;i great part, if not wtaol

from - ierite. Last May I picked up

the dump of the adjoining S s mine

uauganiferous iron oxide at*

hied siderite. A casual examination of

ine dumps a few days later - - lerite

resulting in a nice eolleeti - 'mens.

it mostly typical si ■ - iparatively

- lation. The dumps yield' - - ite are

- Sellers, T. 4 Minnie, Colorado
No. 2 (Louis ilk group . R A M. Mikado group),

lown-tswn mines \ the "Wolftone. the Bl
-lamie Lee. and the Fitzhugh. I had previ-
eolleeted specimens from the workings of the Res-
urrecl r. Tucson. S -d. and Maid •

mir -

Bering two miles in one direction
and almost five in another, from the Resurrection to
the Penrose, is ample to show the wide distribution of
siderite at Leadville. While 1 examined no other dumps,
excepting those of the principal downtown mines, there
is little reason to doubt the occurrence of siderite in
all : - -hat have penetrated the oxidized zone.

while in the white limestone horizon, the siderite re-
placement deposits with their associated lead and zinc
ores, are second ouly in importance and extent to the
sulphide repla - n tlfe blue limestone horizon :

judging by the last few years" development in the Tue-

.nrk-h. "Economic Geology." 1910. p. STO.

son mine of the ' - r Mining Co. and of the Maid
a -
I believe that sediment th its irbon-

- should l>e differentiated
from the siderr - ssure i ms and in re-

placements therefrom, herein called Both

varieties contain mangan- - s carbonate; par-

ticularly vein siderite. which invariably contains a much
higher proportion of mang - - Iimentary

siderite. It may he permissible in discussing the dif-
ference between sedimentary siderite and vein siderite.
briefly to revic" - the important siderite •>

including that pecuh ss E silver-lead-zinc veins in

which siderite forms the principal gaugue: then to com-
pare chemical analyses of vein siderite with those of
sedimentary origin.

K s Sides ins

The great Perran Iron lode. Cornwall. England, oc-
curs in Devonian clay slate intruded by granite por-
phyry dikes. The vein averages about 50 ft. iu width
and is in places filled with i — -lerite carrying

manganese. The outcrop has been exte; -
worked for limonite. and much siderite was mined in

- Brora, the deeper workings. Beeans
the decline in the price of iron and increase in silica
in the ore. it could not be profitably sold as 'spiegel'
ore in 1800. when I had charge of the principal mine
on the lode. The vein bore evidence of reopening, and
between the shoots of mace - rite a breccia of zinc-
blende occurred. Iu the Duchy Peru mine, the angular
- varying from a few pounds weight to several tons,
were imbedded in decomposed clay slate, and cemented
and seamed with siderite. The blende breccia was prof-
itably worked for several years with a production vary-
tons per month of - _ zinc

content. Rich veiulets of argentiferous galena occurred
in places, but apart fro: ystals of galena and

sphalerite the siderite was free from ziuc. lead, and
silver. Near a granite porphyry dike i"elvan" a large
deposit of fine grained sphalerite occurred in a sider-
gangue. The difficulty in separating these min-
erals by water concentration led to my first experi-
ments with magnetic separaf.

The vein in the siderite shoots was full of water-
courses and oval solution cavities. One of them ex-
tended two levels in height and was used for a ladder-
way. The vein was extremely wet. the flow at the Duchy
Peru mine varying from 600 to 1000 gal. per minute,
depending on the season. It all came from the bottom
of the mine. The iron ore sequence is approximately
as follows: limonite to 60 ft.-, siderite. 60

II I'M*

MINIS*. \\! ITIFK I'KI sv

■
tuting on|)
hole
In Brandon I ■ ill— ogland, ■

ear in - of middle

lend ov< ■
with a maxima in ng ft in thick

i peros

ide Th< brown iron of the oateropa has been mined

iil> date, while riderite has in recent

naively mined for 'spiegel' ore, Quarti

■ l with the riderite usually as separate lenses

in the vei does not occur in any

entity in the veins

i LNO l\|i Ql liM ivy

lii numerous lead mines in the North of England in
iniferouB limestones, such as those of Allenheads

i'"r example, riderite ars .-is :i gangue accompanying

tin- galena not only iii the vein fissures bul also in
'Hats' or replacement deposits in favorable limestone
Im'.Is Biderite is of <-«»in 1 in .n occurrence on Hie Kuro-
jii'iin continent both in massive veins and as the prin-
cipal gangue, s opanying rino-lead ores. Suffice it

otion tin' Stahlberg Uusen, where a nearly ver-
..■in enclosed in lower Devonian olay slate has
rorked since 1313. This mass of riderite is about
T."> t't. thick, nearly 500 ft long, and proved to a depth
of about 800 t't. The Luise mine, near Borhausen, in
which Bphalerite, galena, and copper minerals occur in
tln> vein alongside si. I. -rite, is noteworthy in that in
it a basaltic intrusion changed the riderite into mag-
netite. The riderite lode of the Friedrich and Esin-
garten mines of the Bamm district, which also contain
galena, sphalerite, chalcopyrite, and bornite, as well as
antimony and bismuth minerals, 1 may also be cited.
■ I. Arthur Philips calls attention to the import of

manganiferous iron ore into England from limes!

districts producing lead ore. where it probably repre-
sents the superficial alteration of manganiferous spath-
ose ore. Be mentions Almeris and Porman, near Car-
tagenia, where there is a large export. Laurium in
Qreece, and other localities. The ore, he states, varies
between 2."> and 3598 of iron and of manganese.

American Sioerite Veins

Siderite silver-lead veins in North America are well
represented by the Slocan series in British Columbia
and the Wardner deposits in the Coeur d'Alene, Idaho.
The Slocan rocks are clay slates and limestone beds of
possibly pre-Cambrian age: this formation is intruded
by granite, quartz porphyry, and lampropyric dikes.

^Morgans. Morgan. Pror. South Wales Inst, of Eng., Vol. VI.,
p. 78.

■•Philips. J. A.. 'Ore Deposits' (18S4), p. 272.

<Beck, F.. 'The Nature of Ore Deposits' (1905), p. 196 (W. H.
Weed).

■••'Elements of Metallurgy' (1S87), p. 152.

'■lated rritl tnd i|uarl .mat

ing in depth Sidi ighout the

.■hoi.- \ .ii. forming ng often tl

rited on the vein trails It n as alter

nating Mih galens and sphalerite In the rein

Ailing, as the material In breoolated

and I rials deposited on galem

marking the last mineral deposition in thi

Selected specimens of riderite from the Slocan silver
lead Mins grave the following approximati mporition:'

PW o Dl I', ' • • Dl I', r . .nl.

26.11
11.681
... CO 8.0BJ " : ' 7 '

•Hy differ

The siderite is free from /inc. though deposited in
veins with sphalerite It is also free from silver cop

per. and lead as moleciilai stituents However.

grains Of galena and sphalerite occur in all hut the

purest specimens. Tetrahedrite or Freibergite is the
chief silver-bearing mineral. It is invariably ass,,

elated with galena and often contains 20011 oz. silver

per ton. The slocan siderite. usually forming the hulk

of the vein material, being (vv<- from precious metals
and from zinc, becomes a true gangue in these silver-
lead veins. Quarts forms the remaining gangue and

is scarce ni the upper reaches of the veins, hut pre-
dominates in depth.

< in:ii! h'Ai.km: \'i ins

The silver, had. and siderite veins of the Coeur
d'Alene district. Idaho, are of great economic impor-
ts] furnishing as they d arly one-third of the

lead produced in the United States. The country rock

is sericiiic quartzite of pre-Cambrian age. and the ores

were formed chiefly by rep] nl along tight shear

planes. It is believed the siderite developed first, re-
placing both the quartz grain and the sericitic cement.
According to F. L. Ransome, 7 siderite is the most abun-
dant and characteristic gangue mineral of the district.
Be writes: "Its presence as a replacement of quartz-
ite constitutes a striking mineralogies! feature of the
ore. In fact, the deposits in this respect are unique
among the known orebodies of the world.'' Be gives
no chemical analysis of this important vein mineral.
The deposits are unusual because siderite forms so large
a proportion of the gangue and because siderite replaces
quartzite. Both phenomena are common at Leadvillc,
hut perhaps on a smaller scale so far as quartzite re-
placement is concerned. Mr. Ransome, describing the
typical Coeur d'Alene deposit, states: "the siderite is
massive, the ordinary gangue of the Bunker Hill &

"Argall. Philip, 'Report of the Zinc Commission' (Ottawa,
1906), p. 236.

'P. L. Ransome and F. C. Calkins, 'The Geology and Ore
Deposits of the Coeur d'Alene District, Idaho,' TJ. S. Geol.
Surv., Prof, paper No. 62 (1908), p. 95.

MINING AND SCIENTIFIC PRESS

Julv 11, 1914

Sullivan mines, for example, being a pale lirowu, line
grained aggregate of siderite not always distinguish-
able at a casual glance from the quartzite, which it
has in part replaced. In the vicinity of the orebodies
all gradations can be observed between nearly pure
massive siderite and a usually somewhat sericitic quartz-
ite." Coarsely crystalline siderite, he states, is com-
paratively rare, confined to the filling of open spaa 9
or diaclases. Mr. Calkins observes (page 97) : "That
although siderite lias a much wider distribution than
the ores, yet it is most abundant where the rooks have
been folded and fissured." A sample of comparatively
clean siderite from the Hunker Hill & Sullivan mines.

^^^

^^^v^i

* *• •*

V &4

Fin. 1. SIDEBITE CETSTALS OS SULPHIDES fkom ikon mask mink,

BED 11 II I. COLORADO. 1, GALENA; 2, TYHITE; 3, CRYSTALLINE
ZINCBLENDE AND GALENA.

obtained through the courtesy of Stanly A. Easton, as-
sayed 38.8% iron, 4.5% manganese, and 0.5 oz. in sil-
ver, with only 4.8% insoluble. It contained no lead,
but showed some fine specks of disseminated sulphide.
In Colorado there is a great belt of intrusive por-
phyry, of late Cretaceous age, which extends almost
100 miles in a general southwesterly direction from the
gold-telluride district of Boulder county through the
gold district of Gilpin county, the gold, silver, lead,
and zinc district of Clear Creek county, the mining dis-
torts of Montezuma, Kokomo, Breckenridge, Alma,
Leadville, Red Cliff, and Aspen. These intrusions,
while not continuous, may be said to reach their great-
est development in the mining districts noted, princi-
pally at Leadville and probably least at Montezuma.
This belt of porphyry intrusion closely circumscribes
the largest and richest silvery lead, zinc, and iron sul-
phide deposits so far developed in Colorado. Over the
greater part of this mineral belt, varying from 10 to
l.'i miles in width, siderite is a characteristic vein min-

eral. This is particularly true of those veins and de-
posits 'carrying silver, lead, and zinc sulphides and ex-
tending from Silver Plume to Aspen. They reach their
largest development so far known, with the maximum
porphyry intrusion, namely at Leadville. Here the
lower sedimentaries are seamed with fissures and ex-
tensive replacement deposits of vein siderite, associated
as gangue With mixed sulphide ores — galena, zineblende,
and pyrite.

Siderite has been described in the U. S. Geological
Survey reports as occurring in the mining districts
noted. SpUTT anil (Jarrey make frequent mention of

vein siderite in their description of the Georgetown
quadrangle," Their figures 86 and 95 are instructive,
showing siderite as the first incrustation on the fissure
walls. Siderite is also described as one of the last
minerals "coating all other crystals." The Colorado
Geological Survey chronicles the occurrence of siderite
in the Montezuma veins." Siderite is a common min-
eral in the replacement deposits at Red Cliff, and its

surrence lias been noted at Aspen by Mr. Spurr. Fig.

1 shows siderite crystals on sulphides of iron, lead, and
zinc taken from wall of a watercourse in the blue lime-
stone replacement deposit. Iron Mask mine. Red Cliff,
Colorado, by courtesy of Mr. Hanington. general man-
ager. The siderite crystals covering the galena, pyrite,
and blende are the finest I have seen. Siderite. in
smaller crystals, occurs all through the specimen and
on the hack, which is mostly pyrite.

SinKiuTK in Leadville District

All the massive Leadville siderite I have tested is of
the vein variety. That is to say, it is manganiferous.
It also contains 10 to 30% silica. Part of the mangan-
ese or iron is possibly present as silicate. A few an-
alyses of vein siderite are quoted below for comparison
with sedimentary siderite, taking iron, manganese, lime,
and insoluble as a basis:

Analyses of Vein Sidebite

Iron. Manganese. CaO. Insoluble.

% % % %

No. 1 34.67 9.7S 0.28 0.08

No. 2 36.75 8.21 0.50

No. 3 31.00 10.80 1.40 15.00

No. 1 28.40 13.14 6.78*

No. 5 30.15 12.97

No. 6 17.62 26.55

No. 7 38.80 4.50 1.00 4.80

No. 8 23.00 20.70 0.47 19.60

No. 9 21.80 21.10 0.40 21.20

No. 10 19.40 21.00 0.70 19.20

No. 11 25.60 12.60 4.40

No. 12 28.10 9.90 trace 2.00

No. 13 42.50 2.40 2.80

No. 14 29.70 5.40 .... 18.10

No. 15 17.20 11.70 28.40

Average 27.30 13.44 0.82 9.48

•Including 5.52% magnesia.

8U. S. Geol. Surv., Prof, paper No. 63 (1908), pp. 240-257-259,
and 263.

oFirst Report Colorado Geol. Surv., 1908, p. 139.

Jul) 11 19M MINING \ND >■ II Mill. PRESS

■..-r-.-l.hlrr. Kiuslaad

\ Phlll %

U win

..( .hill

■ lu Tli .... I i . .

i no vow m.i.i Hi, I,.. I . . 1 1 1 n .-urn a higher ooml I

, .ml coutent, 10.7 againm I2.u'%, hut ala Dl

Mill • Bum™, ,,,., "due;

nit*. V'i Ui6 r 1 1 f u i ■_' . , i , — it) (|| 6 pieuous difference.

Tt "-"""» "«•'»* *»'«" '"»■ Im oomparing tl ad mangane* itenl of vein

Tucson in lacing whits Urns '""' •edimentary Bideritea, note thai the ultimate nuroa

both metals ia the ign ■ the earth 'i .-nisi

plaolni waits

in wiucu ii mi. I manganes or in the proportion

N ° "" 'dum',"' K V '' ri S * ' i iro." of approximately 60 parta of iron to 1 of raangi

idrUle, Mm. i ..i Krm inin... Bidarltfl replacing , ' 1 " proportion of these metala in the above analyse*

* h . l,, ' ,lr "Vr. is in tl." ratio of 36 iron to l of manganese in the

:■-. El Pane mini Siderite collected tram , ■, ■

dump- sedimentary sidentee, against 2.03 parts iron to I of

No. ii i..Hdvin... nuhosb mini-. Blderlt .i from manganese in the vein siderites. The metals, however,

■ ion.-. Penrose mine, siderite collected from ll " v '' ""' ""'- v " different Bolubility ratio, but also ad

dump, differently in their precipitation from solution through

No. 18, collected on the El Paso damp, is a coarse uIk " ' slli '" '"' ll s " rt *u.-e agencies, to differentiate be

crystalline siderite intimately mixed with pyrite and tween tbe deposition of siderite in lakes, bogs, and amid

nut over one-third siderite. N». 14 is a very fine grain carbonaceous sediment, marine or otherwise, and the de-

silicions siderite. position of siderite in mineral veins.

As an illustration of sedimentary deposits or 'spathic' Somkiuty op Mangani
iron iir.-s (siderite), including blackband ores, the fol

lowing is presented: According to E. C. Sullivan, manganese in rooks is

am,,.,. .„ sediment*., Smtarr. dissolved more easily than iron, by either carbonated

water or dilute sulphuric acid." P. P. Dunnington"

Iron. Manganese. CaO. Insoluble. . . , . ,. . • . . . „ „

showed that an and solution ol ferrous sulphate dis-

70 9b % , • , ,

\o. i | o ; : ; 2.78 28.00 si.iws manganese from the carbonate as sulphate, with

No. 2 81.82 ".74 3.26 19.35 the separation of ferric sulphate and limonite. <'al-

No. 3 ■ 0.71 0.53 u.H cium carbonate precipitates the iron, bul the manga-

6.61 9.80* ne8e requires access of air. The metals, therefore, may

No. 5 83.12 0.20 5.24 8.87* ■ „ ,■ , , , , • u , ,

No „ „ s m ._ he dissolved troiu rocks simultaneously by the same

No - 392 o.8i 16.62 reagent. bu1 for reasons stated are not usually redepos-

No. 8 8.40 0.22 23.90 ited together. C. K. Presenius," from his studies of

No. 9 38.20 2.28 1.90 the warm springs of Wiesbaden, showed that the man-

No - 10 16 - 93 4 - 3B ganese in these waters remains in solution as carbonate

2. il ^4 ,:«i £5 ,,,,,eh longer ,1,; " 1 th - iroM : "" 1 is finaU y laid down as a

Aver: :n : _. 089 636 1492 carbonate, hence the manganese salt is more stable in

•Carbonaceous matter. tAl s O,. solution and is carried farther. Through some of the

X„. i_Whtte Bed mine, Brierly. Yorkshire, England. foregoing reactions, manganese is partly separated from

No. i-Thorncliffe. White mine. Park gate, Yorkshire. iron and is perhaps redepositcd as beds of carbonate, or

No. 3 — Gabbin and Balls mine. Bunkers Hill collierv, Stafford- , . . . . ....

shire, England. as a local precipitate enriching m manganese certain

No. 4 and 5 — 'Coal brasses,' Aberdane. South Wales. J. Ar- localities ill the sedimentaries.

thur Philips. Elements of Metallurgy.' p. 149, 150. m. j nr ai i , . . . ..

No. 6-S.inday Lake, Michigan. 'The Data of Geochemistry.' ' 1| "" KIS '""• -MacAl.slrr.' while hesitating to put

' . S. Geol. Surv.. 190S, p. 492. forward any trustworthy example of precipitated beds

No. 7 — Penokee district. Michigan. 'Data of Geochemistry.' ,. . . .. _ ., . , r . .,

No. 8-Gunflint Lake, Canada. 'Data of Geochemistry.' "' manganese carbonate, eite Barmouth in Menoneth-
No. 9 — Styrian Erzberg. Trans. Am. Inst. Min. Eng., Vol. 23. shire as having two distinct horizons containing Well
No. 10, 11— Helen mine. Siderite, Canada. (In No. 10, CaO in- marked beds. They also state that manganese car-
eludes 12.S r ' f magnesia carbonate, in No. ii. CaO in- bonate exists as an original deposit in the Devonian

OntaHo S ; 7 190lT?9t a Carb0 " ate ' ) BureaU 0t Mines ' beds of the Pyrenees, in the Olig. ne of .Miil.rcn. and

No. 12 — J. .1. Singewald, Report on the Iron Ores of Maryland,' in other localities.

Maryland Geol. & Econ. Surv., Vol. 9, Part 3 (1911).

Excluding No. 13, which is only one-third siderite. '"Sullivan, E. C. Trans. Am. Inst. Min. Eng., Vol. 42 (1911),

the remaining 14 samples of vein siderite average 13.44% "' **;

° r ° nDunnington, P. P., Am. Jour. Science, 3rd ser., Vol. 36

manganese, against an average of less than lyo mangan- (188S| p 177

ese in the 12 samples of sedimentary siderite. The i=Q U otcd Data of Geochemistry.' cited p. : 7::

computed averages are: "'The Geology of Ore Deposits' (London, 1909). p. 317.

MINING AND SCIENTIFIC PRESS

July 11, 1914

N'l.lN SlIiKMTE

III,- condition of solution and Reposition is here en-
tirely different. The circulating solutions are presuma-
bly strongly alkaline, sulphuretted under high pressure,
and doubtless charged with C0 2 . They are powerful
solvents of iron and manganese minerals. Thai they
readily dissolve silica is clearly shown in the extensive*
replacement of quartzite in fte Coeur d'Alene and to
a less extent in Leadville, where the quartzite adjoin-
ing the fissures and solution cavities between the ninth
and tenth levels in the Tin-son mine has been reported
as reduced to a soft sandstone by removal of the sili-
cious matrix between the quartz grains, and fine galena
and blende crystals had been deposited in the intersti-
tial spaces in the altered quartzite of the lower Cam-
brian horizon." Further up in the quartzite the same
solution that dissolved the matrix from between the

nArgall. George O.. Eng. & Min. Jour.. Jan. 29, 1910, p. 264.

quartz grains also partly filled the interstitial spaces
with siderite and mixed sulphides, while the ore
lining the solution cavities often shows siderite as the
first mineral deposited in the sericitized quartz matrix,
ami also i hi- last mineral formed, coating tin- penulti-
mate crystals, usually of galena, with a growth of crys-
talline siderite.

-Moreover* these irregular fissures and meander-
ing solution cavities in the Cambrian quartzite, with
their very rich gold and silver ores, are not confined to
Leadville. They are common in Red Cliff and elsewhere
along the 'great mineral belt' of Colorado, and are evi-
dently produced by the same ageney — hot alkaline solu-
tions under pressure, charged with CO.,, sulphides, and
ferrous iron, perhaps poor in silica content and dis-
solving silica in the quartzites with avidity, forming
silicious carbonate and sulphide of iron replacement de-
posits in the Silurian limestones above, and to some
extent in the Carboniferous limestone.

\)WWM

By DOUGLAS WATERMAN

The question of what grade of ore will give the maxi-
mum profit when mined and treated is of paramount im-
portance at every mine, and is an ever present problem ;
beginning with the inception of the enterprise and con-
tinuing throughout the whole life of the mine. The
owner or shareholder usually decides whether the profits
shall be won from a large tonnage of ore yielding a
narrow margin of profit over a long term of years, or
from a smaller tonnage of selected ore requiring a
smaller capital outlay and giving quicker returns, hut
leaving ore in the mine. It is the business of the en-
gineer to set before his clients the possibilities of the
property for producing the greatest net profit for any
capital outlay, and to define the limits within which the
mine is capable of producing a constant tonnage.

Factors Influencing Output

This requires a careful study of the ore deposits to
determine the width and mode of occurrence of the va-
rious grades of ore; the rate at which it is possible to
carry on development; the available labor supply ail
its producing capacity; and the future prospects; all
of which have a direct bearing on the output. The mill
should be of a capacity to treat the output of ore of the
grade decided upon without crowding the mine, which
must run at a steady pace and according to a definite
plan, or innumerable difficulties will arise. The effect
of increased or diminished tonnage on the costs is of
vital importance. An analysis of their relation presents
some interesting facts which I shall endeavor to bring
out in this paper.

For the purpose of illustration I have been fortunate
not only in securing actual costs of operation over a full
year, but also on a variation in tonnage ranging from

6400 to 11,000 tons. These costs are grouped under
three headings: fixed charges, mining, and treatment,
including tailing loss. The total cost represents the

Tube. Milling

^ 30cr"7:.rjc oocr:~:ra r xw

Tonnage
Fig. 1.

value the ore must have in order to meet all operating
expenses. The cost of the various operations of mining
ami treatment necessarily varies from month to month
even with the same tonnage, owing to renewals and re-
pairs which must be charged to current expenses. In;
order to arrive at a representative cost for any tonnage,
the monthly costs were plotted as shown in Fig, 1. If
a straight line is drawn through the average cost for
the year anil adjusted so that there is a balance between
high and low costs on either side of the line, it should
represent the true average for any given tonnage. This
method was pursued with each separate item of cost,
the results being as in the table opposite.

These tabulated costs were then plotted in the form
of curves shown in Fig. 2. While the figures are based
on results obtained from treating tonnages ranging be-
tween 6400 and 11,000, the curves may be readily ex-
tended, as has been done in this case. The curve rep-
resenting fixed charges may be obtained by dividing
the total cost for the year by the total tonnage, that is

II I'll

MINING an. ITIFK PR

\tr\

l*tr '

1'UIHI |0|

Sun

0.810

■ 11

ii so;

0.114

i 186

HIMMi

0.800

0.840

0.910

0.980

Timber and ralla . .

. 0.061

0.067

0.069

0.072

0.078

Hauling and holitlnj

176

0.181

is:

184

0.181

0.189

191

Filling .

0.070

0.072

0.079

0.082

0.086

0.093

TminiiiiiiK to mill

0.040

0.047

0.048

0.050

0.053

o.o:,s

■'

1.004

1.116

1 162

1.170

1.262

[.404

ru m tu sr.

tier station . .

082

0.091

0.097

0.102

0.110

0.120

0.231
0.873

.1 .'so

0.840
282

0.342
0.884

0.286

0.848

0.291

0.296

1.040

1.110

1.180

1.150

1.180

1.210

1.240

1.800

Filter

0.076
0.106
0.040

0.083
0.118
0.040

0.084
0.113
0.040

0.085
0.114
0.040

0.088
0.116

0.040

0.090
U.119
0.040

0.092
0.122
0.040

0.096
0,040

•

Refining

Bullion

0.170

it. 170

Tailing loss

0.500

0.520

0.550

2 B4G

2.676

2.782

2.768

2.835

2.952

Grand total .

1.170

4.480

i 570

4.650

4.800

4.940

5.120

5.490

a the rated tonnage, whether il be 4000
or 16,000 inns The curves representing mining and
treatment charges, being nearly straight lines, may be
extended without danger of serious error. This graphic
representation gives ;t comprehensive idea of t In- effect

of tonnage on the costs, and may be employed in solv-
ing many problems in mining. In the following illus-
trations in the use of the curves, let it be assumed for
the sake of convenience thai neither profit nor loss is
to result from the operations, and that the normal capac-
ity of tin- mill is lii.iinii tuns. Then the following con-
clusions maj be drawn.

Examples

For example, if there is 4000 tons of available ore
monthly which if treated alone will just pay expenses,
what giade of ore may be added to bring the mill up
to full capacity without changing results?

Treating -1000 tons alone the cost — from the diagram
-wool, I be $6.70 per ton, or a total of .+213.000: lint if
6000 is added, the cost is $4.40, or a total of $44,000.
The difference between these two amounts is $17,160;
thai is to say, allowing $6.70 for treating the first 4000
tons, it would cost only $17,160 to treat an additional
6000 tons, or $2.86 per ton. In other words, of litis
6000 tons, all ore of a grade of over $2.86 would give
a profit.

The following are various combinations illustrating
the example:

4.000 tons at $6.70 $26,800

6,000 tons at 2.86 17,160

10,000 tons at 4.40 $44,000

MINING AND SCIENTIFIC PRESS

July 11, 1914

5,000 tons at $6.10 $30,600

5,000 tons at 2.70 13,500

10.000 tons at 4.40 $44,000

6.000 tons at $5.05 $33,900

1. inns at 2.53 L0.120

10, ions at 4.40 $44,000

These results may be applied to actual mining oper-
• in the following manner: There are perhaps
stopes on the lower levels that will produce 4000 tons
of ore per month and no more, while there is a large
reserve in the levels above that will average #3. If
treated alone, the low-grade ore will show a loss of $1.40
per ton on a 10,000-ton basis. The high-grade ore. if
treated alone, will give a profit of $0.30 per ton, or
$1200 per month. Combining the two in the propor-
tion of 4000 and 6000 tons, results in a profit of $2000
per month.

This brings out the point already mentioned, that the
mine must be run according to a definite plan, other-
wise the st oping of the high-grade ore is bound at some
time to get ahead of development, leaving the mine with
nothing but the low-grade ore, which, if treated alone,
will result in a loss.

As another example, suppose there is 5000 tons of
ore obtainable monthly from the mine that will just
pay expenses if treated alone, what grade of dump-rock
costing in cents for hauling, may be added to bring
the mill up to full capacity and still pay expenses?

Referring to the diagram, on a 10,000-ton basis the
mining cost is $1.10, so that $1 per ton is saved on the
mining charge for the 5000 tons of dump-rock treated,
or 50 cents on the whole tonnage.

5,000 tons of ore at $6.10 $30,500

5,000 tons dump-rock at $1.70 8,500

10,000 tons at $3.39 $39,000

Various other problems may be solved in a similar
manner; as. for instance, the treatment of tailing in
combination with the run-of-mine ore. In such cases,
allowance must be made not only in the item of mining,
bul in the crushing and stamping as well, although in
all probability there will be an added consumption of
lime to neutralize the acid in the tailing, and perhaps
a greater cyanide consumption ; but these are matters
to be decided by experiment.

It will be noted that the value the low-grade ore must
have to pay expenses varies with the tonnage, and also
that in this illustration the critical point is in the neigh-
borhood of $2.70. It will result in an actual loss to
treat any ore much below this figure.

As it is difficull to secure from month to month the
exact quantity and grade of ore desired, especially
where the deposit is irregular, it would he well to set
a limit on the permissible grade of ore somewhat higher
than the theoretical — in this case say at $3. This could
be adjusted to suit conditions as indicated by observa-
tions over a period of time.

It is a mistake to think that the bullion output of a
mine is any indication of whether it is being wo
.it lis best advantage. The manager may call for 4000
tons of $7 ore. The stopes in this particular month ran
HIO tons of $9 ore. so the miner stopes a little
wider and adds 1000 tons of $1, still keeping the aver-
age at $7, bul at an actual loss to the mine of from $1300
to J>1700. This emphasizes the necessity for careful

sampling and direction underground.

In these examples a maximum tonnage of 10,000 tons
has been considered. Cases may arise in which it will
be more profitable to run the mill at less than its full
capacity. "Wlmre the tonnage is reduced to three-quar-
ters or one-half its full capacity it may lie advantageous,
instead of running a part of the stamps the full 24
hours, to run the full number for 12 or 18 hours, and
thus effect a saving iu power and the labor of one shift.
And if the mine is incapable of supplying the demands
of the mill, why not build a smaller mill in the first
place.' This is where there is the greatest need for the
judgment of an engineer.

Miinmg in Spam

Mining companies in Spain totaled 22,463 at the last
census. The mineral riches of the country furnish
one of its chief hopes of future prosperity. The sur-
face areas of the workings already open cover nearly
1.000,000 hectares, or about 2.500,000 acres, an increase
in area of over 25% during the last decade. In the
same time the output of coal, iron, and copper have
Increased, while that of lead has remained about sta-
tionary. The chief provinces where mining as an in-
dustry is in the front rank are Huelva. Oviedo, Murcia,
Viscaya, Jaen, Ciudad Real, Cordoba, Santander, Bada-
joz. Almeria, and Leon. These provinces account for
90% of the output of minerals of the peninsula. Cop-
per predominates in the Huelva district, quicksilver in
Ciudad Heal, and anthracite ill Cordoba. Viscaya fur-
nishes 30'; of the entire iron production, Murcia 5%,
and Almeria 2%. Coal leads iu Oviedo, Cordoba, and

1 i. salt in Alicante and Cadiz, lead in Ciudad Real

and Cordoba, zinc in Santander and Murcia, lignite in
Teruil, silver in Guadalajara, manganese in Oviedo. as-
phalt in Alava, and antimony iu Leon. As a corollary
to the Spanish mining industry, what is technically
known as the 'transformation branch' has made even
a more remarkable advance of late than the extraction
of ore. During the past 10 years the production of
coke has been doubled, and iron and steel likewise;
silver smelted has increased 50%, cement 150%, mer-
cury 30%, asphalt 1200';. pig i ron 300%, and patent
fuel 35 per cent. — 1>< : ' i C-n fcr E ■ rt.

MINERAL PRODUCTION of Queensland. Australia, in the
first quarter of 1914 was valued at £441.180. which is
£94,457 less than for the same period of 1913. Copper
showed a reduction of £84,508, but molybdenite had an
increase from £668 to £6628.

•i mi

minim; \v itifh i*ki ss

Mill i>l lilt M It HI \ hi\m ( | nu'llli MIMs COMPANY.

Th® New Auurwa MS

8> An OCCASIONAL CONTRIBUTOR

The Bale of the control of the Aaron Consolidated
Minis Co. of Aurora, Nev., to the Qoldfleld Consolidated
Klines Co., for almosl $1,000,000, brings to lighl some
interesting facta It demonstrates that there is a de-
mand for good mining properties «ith no lack of pur-
chasers; that there is a chance for old camps to revive;
that new methods in milling are making millions of tons
lit' low-grade ore profitable, and thai the distance from
a railroad does no1 deter the building of an excellent
mill and equipping the property throughout with the
must efficient and up-to-date machinery.

.Inst before tK tin? control of the property by

Jesse Knight to George Wingfield and Albert Burch,
representing the GoldfiVM Consolidated, there were in
Salt Lake City four other interests actively bidding. It
required *:>88,000 in cash t>> 'dose the bargain, with notes
from the Qoldfield Consolidated endorsed by Mr. Wing-
Held for the remainder. Among those who made verbal
or written offers for the properly were Morton Webber;
a Toronto engineer, representing Ellis P. Earle. presi-
dent of the Nipissing: John W. Finch, representing the
Amalgamated Copper interests; representatives from
the United States Smelting, Refining & Mining Co.. and
O. J. Salisbury, of Salt Lake City, who is believed to
have represented certain porphyry copper interests.

Early History

In the sixties, Aurora was one of the big mining

camps of tin- West, as witnessed by the ruins of the
buildings. It was in this eamp that Mark Twain made
his home, and so down at the heel was he at the time, it
is said that he collected champagne bottles and scattered
them about his back door to give his little cabin an air
of prosperity. During the life of this camp it is re-
ported to have had a production of $30,000,000 and no
less than 13 mills were built at the various mines. When
work was first started on the Aurora Consolidated in

September, 1912, there was by actual count li people
in the once flourishing town. Today Aurora has about
300 inhabitants, and there are nine places where liquid
refreshments are poured.

The nearest railroad point to the eamp is Thorn, Nev.,
on the Southern Pacific, from which there are two
stages running to Aurora each day, covering the 32
miles in about two hours time. On account of the grade
all the freighting into the camp is by way of Hudson,
Nev., on the Nevada Copper licit J. inc. which is a dis-
t.ii of 62 miles from Aurora.

It was in 1912 that Charles 10. Knox and John II.
Miller secured an option on the Cain Consolidated Min-
ing company properly, which owned the principal niin-
ing claims in the eamp of Aurora. They succeeded in
interesting Jesse Knight and the Aurora Consolidated
was organized. In September of that year work was
started in a small way and continued until June 1913,
when it was decided to build a 500-ton mill. W. Lester
Mangum was made general manager. Morris P. Kirk
and John H. Leavell of the firm of Kirk & Leavell, were
given instructions to design the mill, and Mr. Leavell,
with the title of manager, was placed in charge of the de-
velopment of the property and the constructi if the

mill. Mr. Kirk became the consulting engineer. Ground
was broken for the mill on June 20. 1913 and on June
15, 1914, the crushing of ore was stinted. Since then
the amount handled has been gradually increased.

Although the number of mining claims brought into
the Company by the Cain Consolidated was quite large,
many more have been added. The management of the
.Aurora has during the past year purchased a number
of others, until today there are some 52 claims held
under patent or in the process of patenting. Embraced
in this territory are some of the most famous claims of
the camp, having between 30.000 and 40,000 ft. of un-
derground workings.

MINING AND SCIENTIFIC PRESS

July 11. 19] I

The Aurora mine is opened by a long adit which is
now being extended from the Humboldt shafl work-
ings toward the Del .Monti or Last Chance liill country,
with branches to the Durand shaft and the Juniata
mine-; opening these workings at a depth of about 500
ft. The Last Chance liill was famous in the early
sixties and eighties as a producer of high-grade ore.
Prom Local Bources its production is estimated at over
$20,000,000, the entire output having been won between
the surface and the 200-ft. level, at which point the veins
were lost. In some of the old pillars today in this part
of the property are to lie found pieces of gold ore that
will carry from $-1000 to $50(10 per ton in gold.

Del Monte St

At the Del .Monte shaft there is an old Cornish pump,
which at the time of installation, was the largest in the
United States, and cost, laid down at Aurora, about
$150,000. It was hauled by team from Stockton. Cali-

s' V*"

f 1"

- i

■ X

' i**^

m ^<-r>?l '

i
i

-1

-~r*-g| '

. **^L

7/ " 1 jfl

lL ^

,ll rite

Aw^

0r* 4

MOTOU IIUIVI" -Mil IS.

fornia. The corner-stone of the building that housed
this installation has carved upon it in large letters,
'Wild West Mining Company, 1862.' This block of
stone weighing several tons is now used as a mantle-
piece for the fire-place in the manager's cottage.

The ore is chiefly gold, with a small amount of silver,
averaging close to $5 per ton and disseminated quite
evenly through a hard quartz. The quartz veins vary
from :i(! to 80 ft. in thickness and run through an an-
desite formation. On account of the hardness of the
rock scarcely any timber is necessary. The mine has
been developed for mining by the shrinkage stope sys-
tem, to which the property seems particularly adapted.
11 is estimated that the cost of mining will be $1 per
ton or less. The mine is electric lighted and equipped
with an electric haulage system.

The ore is drawn from the ehutes into 20 car trains,
drawn by a 4%-ton electric locomotive. The cars are
double truck, side dump, and were especially designed
for the work. From the mine the train travels over a

tram to the mill. The cars arc automatically

.1. no Mop being necessary. They then pass

the steel ore-bins where they are dumped for the coarse
mg plant The trains then make a complete circle
and come back to the main tracks.

From the coarse-ore bins, which are of steel, tfa
passes through a 7U Cates crusher. Thence it passes
over a Gate! screen, where everything over an inch and
a half is sent on to two No. 5 Gates crushers, where it
is reduced to 1% in. Joining the undersize from the
screen, it passes ,to the conveyor belt and is carried
io the head of the mill, where it is further elevated by a
elevator, carrying it to the sampling plant. A
500-lh. sample is taken each day from the 500 tons going
through the plant.

From the sampling plant the ore passes to another
conveyor by which it is carried to four steel ore-bins
having an aggregate capacity of 1600 tons. From this
point the ore passes through feeders to the stamps, where
it is crushed to pass a quarter inch. From the stamps
the ore passes to Callow tanks and then to Dorr classi-
fiers. Thence it goes to 6 by 16-ft. tube-mills and a sec-
ond Dorr classifier, where the — 200-mesh material is
taken out. The -4- 200 goes to a second tube-mill where
it is reground until all material passes 200 mesh.

Prom this point the ore goes to three Dorr thickeners
where it is reduced to a consistency of one to one. From
the thickeners it passes through a series of 5 Dorr
agitators and from the agitators to 4 Trent replacement
machines, where most of the gold in the cyanide solu-
tion is replaced with water. From the replacement
machines the pulp goes to three Trent filters where a
large portion of the remaining cyanide solution is taken
out. the tailing going to waste.

From the Trent replacement machines and the Trent
Biters the gold cyanide solution flows by gravity to the
lower end of the mill where it is pumped through Merrill
clarifying presses, which are set on the thickener floor.
From this point the gold solution flows by gravity
through two Merrill precipitating presses, where the pre-
cipitate is separated from the solution and sent to the
refinery, and the barren cyanide solution is pumped to
the stock tanks at the head of the mill. There they are
enriched before being started through the mill again.

Heavy Stamps

Several unique features have been incorporated in the
design of this mill. One of these is the heavy stamps that
are used. These weigh 1660 lb. each, being among the
heaviest in use in the United States today. Heavier
stamps have been used with much success in gold mining
practice in the Rand. The stamps are in batteries of
five. Each battery is driven by an individual back
geared motor of sufficient power to lift the stamps from
rest and start them going without the necessity of hang-
ing them up.

The 6 tube-mills, as previously stated, are 6 by 16 ft.,
which is a radical departure from the type of mills here-
tofore used in this class of work in that they are larger

u i-'H

MINlNi. \ND Mil i« PH

ipablr

mills

of i\y>< mil i unii is di hp motor

ard bearings und M
,; Dorr i tuba nulls ui.

unique m the fael thai they are the lavgi it

■tructed The driven by » •'• lip. motor

driving .1 line shaft, which is the onl) one in the mill
The ll and replacement machini

all individually motor driven. Hn tin- lower floor of the

.
to 1 1 1 mill purpi

>ii il<. iiii inii.'l lilaclumitli

boarding bouaea end bunk i
superintendent'! roaidencc and is offl-

The machine ihop is equipped with a full outfit

pairing machinery of nil land* It is isjd that
there is hardly anything at the mill l>nt whal eould

J> i

INTERIOR OF TIIK M7ROBA Mill.

mill all the pumps are assembled in one room and are
driven by individual motors.

Another feature of the pliint is the automatic incline
electric elevator. On the opposite side of the mill from
the conveyor is the elevator which runs up and down
from the top of the mill to the bottom to facilitate the

men traveling, from one end of the mill to the other
and also for the delivering of supplies to the different
floors. The Trent replacement process which is in use
at the mill has been tried oul for over a year in Arizona
in various plants and has met with considerable success.
Electric power is used throughout at the mine and the
mill. This is furnished by the Pacific Power company.
a subsidiary corporation of the Nevada California
Power company. The power line is also connected with
the main Nevada California power line so as to insure

be repaired in the shop. It has a 20-ft. lathe, planers.

an oxy-acetylene welding outfit, and all kinds and grades

of tools. The carpenter shop is equally as well equipped.

The mill has heen well arranged fhr convenience and

economy. It is declared that when running at full

eapaeity only IS men will he necessary to handle the
full tonnage every 24 hours. This provides for a mill
crew of four men working each eight hour shift, a re-
pair ere« of four men. a superintendent, and a metal-
lurgist.

Lead, silver, zinc ind ore shipments from Broken
Hill. New South Wales, in April were valued at
*1 .830.000.

MEN EMPLOYED at the Mt. Lyell properties. Tasmania.
total 2100.

MINING AND SCIENTIFIC PRESS

July 11. 1914

lm®

Mine accounts are often more elaborate than
a medium-sized mine warrants. Little mines
often stagger under a ponderous system of red-tape
which the chief clerk or cashier adopted from a big
operator's system. In general, mines are not pro-
pitious places to quibble over bookkeeping technicali-
ties. If the master mechanic wants a man-hole gasket

the amount of cylinder oil used in the engine house, the
boiler house, pumps, etc., the amount of black oil used
for underground cars, etc. Then, of course, the engine-
house items are apportioned to shaft-sinking, driving,
hoisting accounts, etc., according to how much of each
relatively was done during the month. The oils and
explosives are, by M means, the only classes of sup-
plies whid can be kept track of on a tabulated form.
Whatever items arc used in large amounts at any par-
ticular mine, such as perhaps timber or pipe-fittings,

MONTH OP JULY. 1912
SUPPLIES USED IN DIFFERENT ACCOUNTS

PLOSIVE

MINING

TIMBER

OILS AND
WASTE

NAILS
AND

SPIKES

ROCK

DRILL

TOOLS PARTS

CANDLES

ETC

SHAFT SIN KINO FORTY BOXES POWDER.

940.

: DRILLS %WO 4 BOXES CANDLES. S16 ETC

■MO.

ETC- ETC (SHAFT SINKING TOTALS)

290.10

18.60

2.70

300.00

16.00

STOPrNO 1M» MINING TIMBER

40* COD NAILS, ETC.. ETC. ETC

120

(8TOPINO TOTALS)

1042,00

78.00

10.41

1-20

UNDERGROUND HAULAGE ETC

Form 1.

and 'wants it quick,' he does not like to have to make
cut a lengthy requisition for it and charge it to the
proper subdivision of the proper department: and if he
is too much bothered by forms and clerical details, he
will likely lose the company more money taking time

OIL SHEET

...

EXOtXE

HOUSE

■OILS*

HoVEE

rtmn

V O CASS

MUCELUUTEOOt

CTUMIU OIL

> % 4 •
T«AI B fU*

I J 1

i i •

THU 11 flla.

EXOIXE OIL

a • a

i i

■lack on.

•j s a a s >

T*UU 30 ;»i»

KEBC5C-VC

WATTE iWklWI

io". io"

can be conveniently recorded on a sheet ruled by the
clerk to suit his ideas of the matter. This is a more
efficient method of keeping track of supplies than the
complicated 'countersigned' order blanks sometimes
afflicted upon a mine by its Eastern secretary or
auditor. If the mine clerk is overwhelmed with red-
tape so that he has little time for anything else, he can-
not go out for an occasional walk around the plant and

EXPLOSIVES

BRATT SCntKO

DftirrtKo

BToroto

ETC

DYHAMITE 10

Tutu to Bon-

roD

T«U1 -J Bio u

CAFE. ETC

Form 2.

Form 3.

to grumble over its inconsistencies than the extra red-
tape will save.

In the Lake Superior iron ore district many of the
medium-sized mines keep a fairly well-stocked ware-
house and hire a supply clerk to tend it ; frequently, he
is also timekeeper, and he makes out the monthly pay-
rolls, charges and delivers supplies promptly, perhaps
keeps track of cars of ore shipped, and is a valuable
unit in the force and picks up many details whereby
he can save the company money.

Forms 2 and 3, the 'Oil Sheaf and 'Explosive Sheet,'
are simple yet convenient methods for the supply clerk
to keep track of supplies used in the different depart-
ments. At the end of the month he can total up quickly

observe that a car of rails is being unloaded in the
wrong place, or that the mine boss left the powder
magazine door open and a cow has wandered in there.
The superintendent usually does considerable figur-
ing, comparing, and planning over the monthly cost
sheets. It is his guide and prompter; and it should be
in his hands as soon as possible after the end of the
month. At Lake Superior, the different accounts to
which labor and supplies are apportioned and charged,
include some twenty or thirty divisions of the mine
work with items of exploration, development in rock,
development in ore. pumping, stoping. hoisting, under-
ground haulage, steam, air, and water lines, etc. It is
also customary to tabulate on the cost sheet, a classi-

.1 ill n 11. 1914

MIMV. W ITIFK I'KI SS

■ i

the supplies used, m that tin- superintend
tut ran tea Jotl how much timber, oik, ind mat
plosiMs. candles, t. ■..;,. po . drill parte, pipe tod pip'
Bttinga, raila and truck supplies, consumed

during the month, For conveniently arriving at the
total eoal of aaeh olaaaifieation of mppliea used in aaeh
aeeount of aotivity around the mine, « sheet having
ill.- general aeheme of 'Form l" is often naad Thia is

« large si t. rnled al the printer 'a, and perhapa sev-

.•ml will If required m the end of each month, aa all

tlir re -.1- of mppliea need during tin' month are

transfi rred to it. including the oontenta of thi 1 1
SI i' an. I 'Explosive si t." which can then be de-

form l is made "ut either bj the sup-
ply clerk <>r tin- bookkeeper, an. I is then uaed in in

|. tin I-. .ht sheet, a- it furnishes a complete record of
ill mppliea u* .1 ami th<

For venienoe in adding up tin- onmbei

-s liii-ti aaeh man baa worked, when payment is made
monthly, time books ''an be bought which have an extra
column at tin- end "f every week, in which tin' number
of shifts tor tin- preceding week can be mark.. I. si\

..r five, perhapa] per man Then at the end "t' the

month, it i- nparativ.-h easj t.. add up the four

".•.-Us totals, rather than t.. have t ant up twenty-
five or s.i shifts inn' hv i. in

The following opinion was delivered by Judge Fred
If. W I. in th.' Superior Court of tin- State of Cali-
fornia, in ami for tin- county of Amador, in the CI
tin' Kennedy Extension Gold Mining <<>.. plaintiff, v.
Argonaut Mining «'".. defendant, June 29:

'Ph.' plaintiff in tins case is tin- owner of the Muldoon

quartz mine ami millsit.'. a portion of the Jackson

quartz mine, ami a portion i.f tin- Jackson placer
mini', embracing an area of 54 acres, contiguous terri-
tory. 'I'll.' defendant is the owner of the Pioneer quartz
mini', adjoining plaintiff's property on tin- west, of the
pioneer milMte ami the Volunteer quartz mine, adjoin-
ing plaintiff's property on tin- north, ami of the por-
tion of the Jackson placer mini' lying east of the .lark-
son quartz mini'.

Tlii- plaintiff became the owner of its mining prop-
erty in May 1909 ami commenced operation of the prop-
erty in tin.' month of October following. Upon tin- Mul-
doon quartz mine there have been sunk two shafts. ■

of them to the depth of 1000 ft. with levels and cross-
cuts. Upon the Jackson quartz mine there has been
sunk a shaft. No ore has ever been mined or milled by
plaintiff, or its predecessors in interest, from any of its
property mentioned. All the work that plaintiff has
ever done, since its acquisition of the property, has been
to clean out the old workings, and perform such other
work as it deemed important to establish its claim in
this action, and all of the property was idle for many
years prior to plaintiff's ownership.

The defendant purchased its property in tin- year
1893, from the Pioneer Cold & Silver M. Co. Previous
to the time of the acquisition of the property by de-
fendant, a shaft had been sunk to a depth of some TO
ft. through the lava-cap lying over the apex of the
Pioneer vein, and thence a drift extended northward a
distance of 70 ft. along the vein. A tunnel was started
in the Volunteer quartz mine, and driven 520 ft. to the
Argonaut vein, and drifts driven north and south along
the vein. Various other work of minor importance had
also been done when, in 1893. the defendant started a
shaft on the Pioneer millsite about 430 ft. down the
slope and east of the apex of the Argonaut vein, and

sunk it to the L460-ft. level. This shaft was started "ii
the millsite fur the purpnse of getting dump room, ami

to obtain sufficient pressure fr the reservoir on the

hill. Subsequently stations were cut, and lev. -Is opened,

and Btoping .1 from tin- 1200-ft. level upward to the

290-ft. level, where the shaft intersects the vein. In the

regular ami customary course of minim.', the defendant
extended its shaft, opening ami developing various
levels, ami mining and milling the ore and minerals
until, at the time of the trial, the shaft had been sunk
t.. tie- 3900-ft. level on the incline. In developing the
mine below the 1240-ft. level, and following what it

claimed to be its vein or lode, the defendant company
'Mended its levels, drills, and openings, and extracted
therefrom, and removed, ore and minerals of the value
of many thousands of dollars, much of it underneath
the placer lands owned by the plaintiff and its pre-
decessors in interest. The damages cause, 1 by the re-
moval of these ores and minerals are the Subject of this

litigation.

( 'i.aim of Tin-: Plaintiff

On the part of the plaintiff, it is claimed that the lode
in- vein from which these ores and minerals were taken
formed no part of (he so-called Argonaut vein or lode,
ami that it. plaintiff, is entitled to recover the valu.- of
all the ore and mineral mentioned, upon either one of
two grounds: 1 - its common-law right to the ownership
of all minerals lying underneath the surface of its prop-
erty, when not extracted from a vein having its apex
within the exterior boundaries of land belonging to
other persons; i2i that the ores were extracted from
veins having their apices within the .Muldoon quartz
and Jackson quartz mines, extended downward within
■ erticaJ planes of the end lines of such claims.

The defendant asserts, in its defense, that th -e-

bodies mentioned were all obtained from, and for I

a part of, the si. -called Argonaut vein, bavin;.' its apex
within the surface boundaries of the Pioneer quartz
mining claim.

As to tlic plaintiff's claim under the common-law
right to ownership of the ores, the same may be elimin-

MINING AND SCIENTIFIC PRESS

July 11. 1D14

ated from discussion, For it tan be sustained only by
disregarding practically .-ill the oral testimony of the
witnesses, and the opinion of the experts. The real con-
troversy in the action is waged over the location of the
apex of the vein from which the minerals were extracted,
thai is: whether the ores were taken Erom veins having
their apex within the surface of plaintiff's or of defen-
dant's land, and the respective claims of plaintiff and
defendant are based upon Section 2322 of (lie Revised
Statutes of the United States.

Plaintiff's claim, under such apex right, to the owner-
ship of the ores and minerals mentioned, is based upon
rhat ii terms the Jackson vein, by virtue of a union
with the Muldoon gouge vein below the 950-ft. level of

its mine. No continuous develo] nl of the vein has

been made. M is uo1 the discovery vein upon which the
patent to the claim was issued, bul developed exposures
have been made upon which plaintiff has founded theory
igical movements causing the formation of the
great Mother Lode; that tin- Mother Lode fissure is a
normal Fault with a displacement of some 700 ft., ami
not an overthrusl fault, as described by P. L. Ransome

in tie- Mother Lode folio of the I'nited States Geological
Atlas: that instead of there being one vein with branches
as claimed by defendant, and heretofore generally sup-
posed in exist, there are a number of veins, formed at

different periods nf time, which by their faulting must
have prevented any com tion between the pioneer vein

and the vein from which the ores and minerals in eon-

i I'm « r-\ were extracted.

It can serve no useful purpose to enter into a dis-
cussion of the testiii y of many hundred pages given

by experts in support anil refutation of this theory.
1 pun the trial, the impression was strong in the mind

of th' ( oui't thai there was great probability of the cor-
rectness of iiiis theory, and after a subsequent examina-
tion and consideration of the record, there is no attempt

on its part to I Oncile it with the positive and prepon-
derating testimony of practical men engaged in mining,

and Familiar with ll onditions in llns mining district.

Before this Court, however, will say that these men are

all mistaken, and make a finding that will take the
property in the possession of the Argonaut company,
and award it to plaintiff, upon a speculative theory as
to the convulsions and workings of nature countless
ages before the time of man. it will require something
more than a strong opinion as to the plausibility of a
theory. As was said by the Supreme Court of Utah, in
Grand Central Mining Co. v. Mammoth Mining Co.. 83
Pac. Rep., at page < i T -I :

Science has not yet unfolded all of Nature's intricacies, and
in all probability never will, to such an extent that the fallible
human mind can fully grasp them, though indications may be
revealed. To look at a mountain is one thing, but to look
into the inner recesses of the earth, through surface indica-
tions is another. Every geologist, every miner, knows that,
in determining the contents and aotual conditions of a moun-
tain by surface indications, even with extensive workings,
which, after all. constitute but slight explorations compared
with the whole mass, such difficulties are necessarily and in-

variably encountered as to produce differences of opinion,
considering the same physical facts. Inductive reasoning has
not attained such a high state of perfection as to lead all men,
viewing the same parts, to the same conclusion as to the
whole. Tins is especially true when the investigation of a

• ""i of a thing is attended with great difficulty. In cases

of stratified rock, where the beds are regular, it is compara-
tively easy to determine the location of a vein; its strike and
dip: but whfre the beds are broken, tilted, and fractured,
and in places fissures running in all directions, the investi-
gation of one party may lead to very erroneous conclusions
as to the formation and contents in general, or as to the
location and course of a particular section or ledge, a small
part of its location and course only being definitely known.

The mining' laws of the United States are framed upon
the ideas of the practical miner as to what constitutes
a lode or vein, rather than those id' the geologist. In
this case, the testimony of practical miners, familiar
with the conditions upon this part of the Mother Lode,
is overwhelming that the Argonaut vein is continuous
from the apex to the lowest level. Needless to state, all
the expert witnesses for defendant concur in that testi-
ty.

While Hie plaintiff in this ease relics upon developed
exposures only to substantiate its theory, and its claim
lo extralaleral rights by virtue of its apex location, it
contends that continuous development by defendant in
its workings has disclosed interruptions or breaks in the
so-called Argonaut vein which demonstrate^ that there
is no continuity of the vein shown, as required by law.
This, to my mind, seems to be the most serious objection
to the adoption by the Court and qualified mining men
of the inference of ihese experiences.

The Continuity, of Veins

\o arbitrary rule has been laid down which defines
exactly what must be shown in order to establish the
continuity of a vein. In speaking of this subject it was
said by the Supreme Court of Montana, in Butte & Bos-
ton Mining Co. r. Soeiete Annonyme des Mines de Lex-
ington, 75 A. State Rep., 513:

Laws of continuity," says Webster's Dictionary, "the prin-
ciple that nothing passes from one state to another without
g through all the intermediate states." Speaking ex-
ii I by ibis definition, it would often be very difficult, if not
impossible, for the challenged proprietor of a mineral vein
to convince a jury of the continuity of a vein from one part
to another, for there might not be continuity by actual con-
tact of the parts of contiguity, which the precise word may
literally mean must exist. Were such a rule inexorable, a
failure of proof would not infrequently be brought about by
the inability of the miner to prove continuity without transi-
tion through intermediate states. The miner, therefore, might
fall short of that exact measure of evidence required to estab-
lish a continuity of vein which excludes any interruption be-
tween one and another part of the identical thing, and,
judged by too closely interpreted significations, the continuity
of the vein would be lost. * * * Now, the miner's object
is to disclose and mine the mineralized portion of the vein,
and to do so economically. But he will not necessarily con-
tinue his exploitation from an initial point. He may work
at numerous points on the vein, or he may drive a tunnel
through extraneous rock to tap the vein at a point quite
remote from his other workings.

I'M!

MINING W UK PK

116 1 8

il uniform dip or ihh

round in what, when th<- mini
tnki n

. k. with a ».il .l.nii.il viitll above ami baloa ..;

porpb] r> : aliove or

• in In-

actly and conUnuoualj traced, and the

i round between them,

donbt thnt ii la Uii ami vain. Hut

:i ih.- encloalni rock, called in mining
parlun diminishes so at to lie m

.1 short dlatani in dl

.uul again Is found distinctly '" I

• ii that, although the under
uperpoelng country ruck is there, the n

• be found, bul following the (Insure it re-
in rerjr Boon, ii also happens thai both ;
and niiK. ra! come in an end aiul are found no more in tliai
ir, If found, so far off or so deflected from the
1 line as to constitute no pnrt of thai rein. Of ■

to see thai i' la 'he same vein all

see in some Instances the rein

has run out: has ended. But there are other eases, of a

class of which thai before us is one, where ii la a matter

difficult; to l ay down auch rules for the guidance

of a jury as will best aid them In arriving al a just verdict.

The Mother Lode Polio of the Geological Atlas of the

I'liiiml Siai.> at page B, Bays:

Vims there may be many small veins or stringers together

constituting what has been called a Btrlnger lead, or stringer

Host "I the large mines of the Mother Lode are upon

leads of this character, and their \i ins are really aggregates

of many velnlets,

W. II. Wiley, a witness for defendant, testified at the
trial :

Vi -ins. as I have seen them, are rarely distinct planes with
two defined walls and one streak of quartz or other material
between them, but they are usually complex, and in the case
of the Mother Lode, there Is no variation from this rule of
complexity. They have been termed stringer veins. It is
an apt designation in describing portions of these lodes.

•I. W. Pinch, an eminent geologist, a witness for
plaintiff, in speaking of the Jackson vein, said:

With its parallel stringers of quartz, there is a representa-
tion of a true stringer vein.

Other testimony in reference to stringer leads might
be quoted, but that of these two gentlemen is selected be-
cause they were chosen by the respective parties to the
action to accompany the Judge of this Court upon the
view of the property, to point out for inspection the
various places deemed important to be seen, to obtain a
fair understanding of the testimony given to support
tin- theory of each side. If a vein were always an ore-
bearing filling of a single fissure, the difficulties encoun-
tered in this case and the wide divergence of experts'
opinions would not exist. However, tested by the forego-
ing quotations, from the opinions of the Courts and of

IU Hint lb. ah l.y

I in mining di
■ ii tins .ii ,'.-i| l.y Hi.- evidence,

when .mi rain i

Minimis hi us ,i through tin- plaoer lands

• if pliuiiiiir. even tho options

ihowti in ■

In tin presentation "i us evidence to substantial
claim by virtue of us apes rights, the burden »»s upon
the plaintiff, Kennedy Extension Co., to show, by a pre
pouderance of evidence, the apex and continuity of i )■•-

Jackson rain, in order vercome the evidenoi the

pari of defendant in its attempt to sin>« apex and con-
tinuity of the Pioneer vein; that it to say. that if the
conditions were reversed, and plaintiff had been in pus

session, and mined il re and minerals from a segment

of the vein in dispute, under a claim that it constituted
ii part of the Jackson vein, less satisfactory evidence
would be required to retain them than is ih>» required
in recover their value from the defendant, Argonaut
company.

As before mentioned, there lias been no continuous
development to show the continuity of the Jackson

• I- : of its claim, plaintiff relies upon surface cuts,

posure in the 180-ft. level of its mine, with drills

.hi. I upraises therefrom, an exposure in the 4nn. tin- si if).

and the 950-ft. levels, with raises and CrOSS-CUtS on this

last-mentioned level, below which it is clai I that there

is a union with the Muldoon gouge vein, whicl m is

it with a vein from which the ores and minerals in dis-
pute were extracted. The patent for the Jackson quartz
claim «;is applied for upon a discovery vein oilier than
the SO-Called Jackson vein.

It devolved upon plaintiff, in its claim of extralaternl
rights upon this secondary vein, to show the existence
of the vein to an extent necessary to cover that part of
the vein in dispute, from which the minerals and ores
in dispute were taken.

Hayman v. Wheeler, 29 Fed. Red., 347.

Argonaut Con. M. & M. Co., v. Turner, 48 Par Rep., G85.

Apex op Discovert! Vein

Now. it is claimed that ihis apex comes to the surf;

and is not what is known as a blind apex. A series of
cuts or trenches was made, which it is claimed show the
course of this apex. Every witness for defendant, prac-
tical miners and experts, are positive that nothing is
disclosed in these cuts which can be called a vein. As
to the witnesses for plaintiff: Mr. Perry stated that a
fissure was shown in each one ; that there were numerous
Stringers of quartz east of the fissure, irregular and
running in different directions. Mr. Devereaux. who
had had more experience in mining upon the Mother
Lode than any of the other witnesses for the plaintiff, in
giving his testimony as a witness for plaintiff, said, that
these stringers of quartz are a common occurrence in a
slate country, whether near a large vein or not, and, as
to some, he did not consider them a part of the Jackson
vein. All the witnesses for plaintiff, however, are posi-

MINING AND SCIENTIFIC PRESS

July 11, l'.iH

tire iluti the Jackson apex is sufficiently disclosed. The
indications specified, with the other testimony, are suf-
ficient, ot course, to warrant an Inference of the exist-
ence of the apex, but they also indicate that a different
inference may be drawn. To me, however, it seems dif-
ficult td understand how this vein, with its apex at the
surface, should remain undiscovered until the com-
mencement of this action, after SO many years of mining
activity in this country.

There are vexatious and embarrassing questions in-
volved in this case, some of which seem to be impossible
of an entire and satisfactory solution by the human
mind, looking at them from an impartial standpoint.
Bach side, apparently, can see no merit in the claim of
the other, bid. viewing the entire testimony of each side.

weighed in the scales, it seems al st evenly balanced.;

but. as before indicated, this Court is largely influenced

in its decision by the prej lerance of the testimony of

practical mining men familiar with its history, ami its
disinclination upon the evidence produced, to take the
property from the possession of the Argonaut company,
which it has obtained by its discovery and labor in
prosecuting the work upon what it had every reason to
believe, and was generally supposed, to be the Argonaut
vein. It was I he intention of the Court to discuss in
detail many of the interesting features of this case left
untouched, but the opinion has been delayed through
sickness and pressure of other labors, and undoubtedly
both parties to the litigation will find more satisfaction
in the announcement of a decision than in the perusal
of a protracted opinion.

The Court is of the opinion and decides that the con-
tinuity and identity of the Argonaut vein is sufficiently
shown to meet the requirements of the law; that the
evidence does not satisfactorily establish the course of
Hi.' apex of the Jackson vein: that the defendant. Argo-
naut Mining Co., is entitled to retain the proceeds of
the ores and minerals extracted from the segment of the
vein in dispute, and to a judgment for its costs. Let
findings lie prepared accordingly, and served and sub-
mitted in accordance with the statute.

By O. J. STEINHART

.Much erroneous information from time to time ap-
pears with regard to the metal tungsten and its min-
erals, so that some notes on the subject, especially with
regard to the commercial value and uses of these min-
erals, may be of interest.

The most important of the tungsten minerals are
wolframite, or wolfram as it is generally called, hiib-
nerite, ferberite, scheelite, and wolfram ochre, or
tungstite. Wolframite, hiibnerite, and ferberite are
essentially tungstate of irou, with varying percentages
of manganese, and contain up to 76% of tungstic acid
WO Scheelite is tungstate of lime, and contains

as much as 80% WO a when pure.

As regards the occurrence of tungsten minerals and

their main geological associates, it may he briefly stated
that they generally occur in the older rocks of pre-
Cambrian and Cambrian periods. Wolframite is also
found in quartz veins in granite ami also in pegmatite,
often near and in contact with metamorphie schists.

Tungsten minerals are frequently found in conjunc-
tion with cassitcrite. Their separation from the latter

generally offers no serious difficulty by means of electro-

magnetic met hods, but it is a difficult problem some-
times to separate very finely crystalline tin oxide and
wolframite, especially in the presence of sulphides and
arsenides. Such mixed concentrates have to be roasted,
with the result that the cassitcrite becomes coated with
a line layer of magnetic iron and is attracted by the
magnet, SO that further chemical treatment is neces-
sary. In milling mixed tin-wolfram ores it is gener-
ally found that the losses of wolfram are greater than
those of tin.

.Many misstatements have been made as to the uses
of tungsten. Writers have often copied notes m hooks
on chemistry to the effect that wolfram is used to a
considerable extent today in the textile industries ami
for the manufacture of certain bronzes. The total
amount of wolfram consumed for this purpose would
not exceed a few hundred tons. By far the most im-
portant application of tungsten metal and Eerro-tung-
slen is the manufacture of self-hardening high-speed
tool steel, which contains as much as 20% tungsten
in conjunction with smaller proportions of other metals.

Another important application for tungsten is the
metallic filament lamp. The consumption of metal,
however, for this purpose is of subordinate importance,
for one ton of wolframite should suffice to make 18,000,-

000 incandescent lamps.

It is also reported that tungsten is used in the manu-
facture of armor plate, but as facts referring to this
subject are naturaly kept secret by the various gov-
ernments, definite information is difficult to obtain. A
further use, which, however, is not of great importance,
is the employment of tungsten steel for the permanent
magnets in telephones.

Prices are often based on 65% W0 3 , and deduction
of 2d. to 3d. per unit made for every unit below 65%
down to 60% W0 3 , below which figure a still greater
deduction is demanded by buyers. It may be said
that wolframite and its varieties form by far the greater
portion of the world's supply, and scheelite is of sec-
ondary importance. Scheelite generally realizes from

1 to 3s. per unit less than wolframite.

Wolframite is easily identified by means of its streak,
which is reddish brown, as compared with tin oxide,
which is much harder and of a grayish white. If
tungsten-bearing minerals are powdered and boiled for
a few minutes with strong hydrochloric acid and metallic
zinc added to this liquid, the yellow tungsten acid sue
pended and in solution will change its color to blue,
owing to the formation of lower oxide of tungsten. —
Financial Times.

.IiiK 11 r»u

MIMV. WD S< II. Mil K PRI

if Ike Mi mm. »mi Si ii mi>u I'm >~

and uthrr m<. : hihi.1 tO », imokj .In-/ »i( tallu ' UV I'hr /'</'/•

(" hit iblt than ..nun/ ntmpllmenl. I inert Ion •■! any oontrib*

■ ■ :■;, , , uf this ,,,||r rill/.

The Editor:

Sir In your issue ol January 17 is ■ letter by M
ii. P Sohnlviu, under the above beading, referring to
mi article by Mr. Tail of October 18 dealing, among
other things, with the Anchor mine. As published in
the yearl.i report, the figures are confusing,

There are !»•> mines worked together, the Anchor and
the Australian; the items (1) total ore treated, 104.73:2
ions. (2 black tin Raved, 188.6 t"iis. includes both
nun, s. The tin per ton, :t.42 lb., referred only t" the
Anchor mini'. The correct figures are;

Anchor. Australian

Stone crushed, tons 76497 28,626

Black tin saved 184 1 7cwt 68 L l9c\vt.

Pounds per ion 3.42 5.02

Tons per stamp In 24 hours ."• .::s 6.11

Cost 3/6 3/6'4

Tin si- appear in another portion of the report. In
all cases long tuns of l"_'40 lb. arc referred to.

His other assumption, however, that 5091 is lost, is

not borne out by experience. Fr r sampling, grab

samples from the ore on the way t" the battery, peri-
odical sampling of pulp from the mortar boxes, indi-
vidnal sampling of tailing from different tables, and
continuous automatic sampling of all the tailing, my
conclusion is that the loss is not nearly so great. An
examination and a sampling of the tailinL-s deposited
in the stream and on the Hats below the battery, indi-
cates a still smaller loss. As I am not satisfied with
any of the results, however carefully they are worked
out, I <lo not '-are to publish them. At the same time,
it does not appear to me that the loss is greater at
any time than •J")',, that is. on Anchor ore — it would
probably not exceed 1 lb. of oxide per ton of ore
treated. On Australian mine ore, the proportion would
be less.

It is only of late years that the Australian mine
has been worked, and the average value of the ore
for ahout ten years at the Anchor mine was 3.42 lh.
oxide. The period referred to in the editor's footnote.
in which a loss of $8500 was incurred, was for the
financial year 1009-10. In some years a fair profit was
made: for instance, in 1906-7, 153,738 tons was treated
for a return of 2.206 lb. of metallic tin per ton. or
3.28 lh. black tin, at a cost of 55 cents: for that year
87.249? stamps crushed 5.85 tons per stamp in -4 hours.

with a net profit of over £5000. With a constant water
supply, a good run. and a decent price for tin. we
can make a fair profit on ore with an average value

12 lb oxide, I nfortunately, for some years tins
ias ii,, i been possible, ami our yearlj output has been
reduced so that cither the profit has been smal

loss lias been made

The -tone worked is granite of varying di
hardness. Of late years it has been much b
ducing the capacity of battery and increasing
As u ill be seen fi i the crushing returns I Anchi

ions per stamp in -I hours; Australian, <i.11 ton- per

Ge 'a s C'±~*f>* *

|oeo o"o| jo o o oo| loooo o]

lljFn ITTFQ

APPROXIMATE FLOW-SHEET, ANCHOK \l I M . LOTTAH, l\~'l\M.\.

Stamp), the Australian Stone is easier crushed and

resembles the stone from the Anchor some years since.
.More or less overburden has to he removed, consist-
ing of surface soil and barren granite. The latter is
usually decomposed and capable of being hydraulicked,

luit contains hard masses and seams, in some rases

forming 50% of the material. These have to be blast-
ed and trammed to spoil banks. In some eases this
overburden is over To ft. deep, and overlies only 30
or 40 ft. of profitabl 'e.

The stone is run in some cases by gravity to the
crusher station, but in most cases is hauled up in-
clined roads by friction winches. The crusher station

consists of a No. S Heclon (Hadfield & Jacks ; the

MINING AND SCIENTIFIC PRESS

July 11. l!iu

stone from this is elevated by a buckel elevator to a
No. 4 Gates crusher, and from this goes to bins from
which wagons are tilled that run by gravity about 12
chains to the battery bins. Challenge Eeeders deliver
the ore to l (| " bead of stamps in two sheds o
The Btamps are nominally Kmii lb., but really about
900. From the boxes the pulp proceeds to simple two-
compartment hydraulic classifiers. In the two sheds
the arrangement of the concentrating plant is si
different and immaterial alterations are continually
being made In the first instance, the products of
classifiers went to two sets of double-compartment
liar/, jiu's. but the ore was so poor that these were
very imperfect concentrators. 1 would not care td
use the jigs on a tin ore that did not contain at leasti
%% of fairly coarse tin. These jigs also required a
considerable amount of power, and dressing water. In
the present practice, the first and second classifier
products go to shaking-tables ("Wilfleys, Cards, <ir
tables of our own design and construction). The over*
flow from classifier goes to settlers and thence to
other tables. From the tables we get firsts and sect

Onds, those from first floor go to jigs that remove any
topaz or other heavy sand, pieces of iron. etc. They
are then further cleaned by "hand in a hydraulic dresser,
ami are bagged. These we can get up to 73 per cent.
The overflow from first settlers goes to other set-
tlers that feed Fnie ranner& or shaking-tables. The
tailing from tables on top floor goes to settlers that
feed other shaking-tables, and from second floor to
settlers thai supply Borlase huddles on the bottom

floor. These are very inefficient machines, hut as they
require cleaning up about every six weeks, and
only then produce a hundredweight or two of oxide,
their presence or absence is not a serious matter. The
concentrates from all these are redressed on the hy-
draulic dresser when coarse, and are dressed in a hand
I kieve or tossing tub when fine. The slime
dressed on a Frne vanner and re-dressed in
hand buddle and kieve. The tailing from all these
is handled and re-dressed over and over again in the
anciently approved Cornish method. The seconds we
get up to 68 to 70%. This scheme is indicated ap-
proximately in the attached flow-sheet, which, however,
omits many of the minor steps.

Many slime machines have been tried, including one
of my own (which was a failure), canvas strakes, can-
vas bi 11 tables, circular tables, etc.. and we can find
none better suited to our circumstances than the Frue
vanner. It is not so efficient, however, as the shaking-
table on the coarser tin, as it is of less capacity. The
rubber belt also requires frequent renewal, and when

iri I' rubber is high we can make a complete

shaking-table which will outlast many belts for less
I han th ist of one.

The ore is a good milling one. and fairly coarse

crushing releases nearly all the tin. Tyler slotted

screens with an aperture of 0054 in. are used. More
than half of the tin will pass through a 200-m n sii

screen. Tower is from water, with two supplies, the

main of 880 ft. head, the smaller with 500 ft. head

applied through a number of Peltons. For normal
work, nearly 1000 cu. ft. per minute is required, and

very rarely is available. The opening of the country
for cattle graaing, and hush tires, has rendered the
supply precarious, and the steep hillsides, broken into

mam narrow gullies, make water conservation on a
sufficient scale impossible. Many schemes have been
considered for improving the power supply, but finan-
cial difficulties have prevented their construction. The
main water-race is about 30 miles long and contains
several miles of timber flume which is always suffer-
ing damage from hush tires. Hoods, droughts, and fall-
ing timber. The earthen portion does not suffer so

severely, its principal enemy being the 'platypus'
(called for short the Ornithorhynchus paradoxus),

which burrows into the hanks and lets the water out.

The minimum rates for labor are $1.92 to $2.04 per
8-hour day. The local men usually are a fine class
physically, use their brains, and are reliable. The cas-
ual hands are not so satisfactory. In the early days
of the mine, rock-drills were used, but the result was
not satisfactory. Lately hammer drills have been used
with success for drilling the boulders.

It will he seen that there are facilities for cheap
work, and that our costs could be reduced with a
constant water supply. On the other hand, on the
west coast id' Tasmania, with a severe climate, and
higher wages rate, there is the Renison Bell tin mine
(which 1 am also responsible fori, with a 10-head bat-
tery and an output of barely 20,000 tons per year,
where the working costs at present do not exceed $1.44. >
This does not include prospecting and development

costs, which at present are high, sometimes ex ling

the amount spent iii mining. The tin oxide here is
much finer and more difficult to save than that at the
Anchor and Australian mines. I am at present
doubling the battery, and hope to reduce costs and

increase output considerably.

T trust that I have supplied all the information de-
sired by Mr. Sohnlein.

James R. Lewis.

Melbourne, Australia. April 21.

[The resume of the milling practice at the Anchor
property presented by M. Lewis will undoubtedly an-
swer Mr. Sohnlein 's query. We regret, however, that a
more detailed analysis of production costs and milling
results are not available. It is evident from the above
letter that an extraction of much better than 50 per
cent of the tin is being made, which with the confusing
manner in which the Company's returns are published
accounts fertile apparent discrepancies. Thai low costs
Hi common in tin mining is also evidenced by the re-
turns from Ml. Bischoff, where the cost per ton of ore
mined, which is mostly by open cuts, crushed, concen-

trati ' ,i d smelted at L; lestnn. 100 miles away, is

only $1.15 per ton. With such a cost, comparatively
I .u grade ore may be profitably handled. — Editor.]

11 p'll

\il\l\i. \\; : 11 it I'M

COMCEMTEATES

■ t rply i» ■,

• I

kept ni iin- rescue stations of the
i 8 Bureau of Mines in thi-. country, and
stations abroad, and forui part of the rescue equipment
«t some mines. In • - in mines small ani

may be usod repeatedly without danger of their
eptible '.. carbon-monoxide poisoning
after man] exposures than after the Brat, if thej arc

allowed i'i recover between exposures, a irding t..

A. Burrell, Frank M. Seibert, an. I 1 \V. Robert
son. Canaries are less resistant '•• carbon-monoxide

p. .i^ ig than mice, chickens, rabbits, guinea pigs, or

It is i' mmended that canaries be used when-
ever possible an. I that al least thr f them be carried

liy an exploration party. Men may display distress
in the presence ..i proportions of carbon monoxide as
small as 0.10%, whereas small animals in the same
atmosphere may show no signs of being affected'.

'I i ui'i r air and rock in the St. John del Bey
mine, Brazil, during the four h«t months of 1913-14,
namely, 1> raber, January, February, and March, an-
as lull. .us. a ir. I iiiLT to the annual report of the sup. -rin

tendril t, i leorge < 'halmers:

von Depth on in- Air. Rock,

clinc-. ft. Deg. P. Deg. P.

100 77 7s

s 2300 M

10 2800 BE 85

11 3100 85 *7

3400 86 88

3700 ^7 89

4 i 89 92

1300 90 '.'l

1600 91 97

4900 9S mi

5226 97 104

All temperatures were taken in the downcast. A
large Sirocco fan is in continuous operation, and an-
other is being installed. When the workings are all c in
il with the main ventilating system, the following
air temperature is expected: horizon 18, 92": 17. 91 ;
16, 90 : 15, 89 ; 14. 88 ; 13, 87°; 12. 86°: 11, 85°;

10, 84 ; and 8, 82°. Rock temperature al the tii

opening horizons is as follows: 8, 85°: 10, 89°; 11, 91°;
12, !M ; 13, 96 : 14, 99 | 1.".. L0] ; 16, 1":i ; 17, 106";
.,,,,1 is. 108 . The pasl year shows a slighl reduction
compared with the previous year.

]■'< nder < hains a re being installed al the various locks
ai Panama to prevent vessels from possible injury to
lock gates. There will In- 24 chains in all. of which 15
have been made, and aboul four have arrived al the
Canal . mi They are the last of the large items of the

lock operating and protective devices to be installed
The delivery of the chains, which are of unusual

and present man) difficulties lauufacturc, has been

uncertain, Chains have becu under order at three .lit
ferenl American chain ».nk-. simultaneously, and the
I'anama .-anal is now inviting tenders from Europe for

maining nine. The chains average from lis
ft, in length, and the two for protecting the lower guard

at Miraflorea locks are each 784 ft. longj being
k| ially arranged on account of the tidal fluctuat ,

weigh about 85 lb. per foot, nearly three times as
much as the heaviest rails on the I'anama railroad. The

links are made fr bars •'! in. diameter, and each link

in the principal pari of the chain is 17 in. long by 10^
in. wide. The .hains are designed to withstand uor
ma liy a tension of 220,000 n... or approximately l""

i. .ns. which is about 50$ of their breaking load.

Glaciers in Alaska have i n studied by the United

States Geological Survey, and in a report on the coastal
glaciers of Prince William Bound and Kenai peninsula
li\ r. s Q ran I and l>. P. Higgins the following is the

GI.ACIr.lt OS THE ISKOOT RIVER, WHASCEI.I. DISTRICT, ALASKA.

summary: Some of the glaciers described, the Valdez,
shoup. Columbia, those of Port Wells ami the Bear,
have been under observation on several occasions during
a period of 10 years. On the whole, the glaciers here

studied di t give uniform evidence as to a general re-

treal or a general advance within the last half century;
some are evidently in a period of retreat and others in
:, period of advance, and the general balance between

retreal and advance ca be i urately determined by

data now at hand. The accompanying halftone shows
■ i glacier mi i he [skoot river.

MINING AND SCIENTIFIC PRESS

July 11. r.iH

REVIEW OF MINING

a.6 been at the world's greut mining centres by our own correspondents.

NEW YORK

MiNiNfl is Mexico. — G ben fell Failure ami the Canadian
Aoency. — Dividends Passu. by. Mining Companies. —
CiiiNo Bonos. — Oil in Japan. — Butte & Supekiob New-
Claims.

The success of t lie Constitutionalist troops in Mexico is
steadily putting one after another of the mining districts
within the territory controlled by the rebels. Operations
at Cananea and Moctezunia have not been seriously inter-
fered with, and the American Smelting & Refining Co. is
about to start its Chihuahua plant again. The Velardena,
Torreon, Matehuala, and Aguascalientes plants are now all
in Constitutionalist territory, and as far as safety to the
operating staff goes, could be blown in. But the first requi-
site for smelting operations is good transportation facilities,
and, though the railroads are available, they are kept busy
moving troops. It is reported that very little damage has
been done to the smelting plants, and that the mines are
in ;;ood order.
The Grenfell failure in London has many ramifications.

i which is the probable collapse of the Canadian Agency's

milling operations in Nicaragua. This Company had taken
an option on the Siempre Viva, which is controlled by New
Orleans investors: the Bonanza, owned by Joe La Pierre;
the Lone Star, owned by Richard McGinnis; and the Mars,
a small property; all of them gold mines in eastern Nica-
ragua. Development work has been progressing in good
shape, but in its present condition the Canadian Agency
will probably have to let the options lapse, and the proposed
solidation of these properties will fall through.

At first thought it would seem that the present 'psycholog-
ical' depression of business should have no effect on mining,
but in one way or another it apparently has. Since January
1 the following mining companies have passed one or more
dividends: American Zinc & Lead, Assets Realization, Cop-
per Range, Dominion Steel Corporation. Mines Company of
America, Mohawk, New Idria, Pennsylvania Steel. Quincy. and
Tonopah Extension. The Calumet & Hecla reduced its dis-
tribution from $G to $5: New York. Honduras & Rosario. from
:',< , to 2',: Old Dominion, from $1.25 to $1: Utah Consoli-
dated, from $1 to 50c; and the United Globe Mines, from $7
to $4. Some of these companies suffered from the strike in
the Lake Superior region, and others from the trouble in
Mexico: but the net result is thai mining as well as general
business is in a period of depression.

Out of the Chino bond issue, convertible into stock at $25,
all but $3000 has been converted. The Bingham & Garfield
Railroad bonds, exchangeable for Utah Copper stock at $50,
have not been completely taken up. and $657,000 is still
outstanding. The exchange privilege ceased on July 1.

Duluth investors have formed a new mining company, the
Cactus Consolidated, organized under the laws of Delaware,
with a capital of $1,000,000.

At the end of May. oil wells of the Nippon Oil Co., at
Kurokawa. Akita prefecture, were gushing with considerable
force. According to K. Ito, one of the Company's officials,
work was started on one well early in April, and oil was
struck at 1368 ft. The other five wells in the district, which
required pumping, ihen started to flow to the surface. I'ntil
I. the new well produced about 12,000 bW. per 24 hours.
Very little gas accompanies the oil

On account»of the Butte-Milwaukee Copper Co. selling its
property to the Butte-New Vork Copper Co., the stock of the
latter being controlled by the Butte & Superior Copper Co.,
the Butte & Superior secures five claims adjacent to its mine
at Butte, and six claims in the Argenta district of southern
Montana. The Butte-Milwaukee claims are a valuable addi-
tion to the Butte & Superior property.

About 05', of the gold output of Peru in 1912 came from
copper ores treated at Cerro de Pasco, according to figures
just published. This revival of one branch of mining stimu-
lates others.

TORONTO, ONTARIO

Black Oil Stbi'ck 70 Milks FBOM tiik White Oil OF Caluaky.
— Canadian Goi.dkiklds Syndicate to be Liquidated.

Another find has been made in the Calgary oilfields, fol-
lowed by a renewal in a somewhat milder form of the excite-
ment resulting from the Dingman well. Crude black oil was
found in the Monarch well on June 17 at a depth of 808 ft.,
and is believed to occur in quantity, but drilling was suspend-
ed until the well could be capped to avoid a rush of oil. The
find is considered encouraging, as showing the extent of the
field. The Monarch well is situated 30 miles west, and
miles south of the town of Olds, and is about 70 miles north-
west of the Dingman well. There was a flurry of stock
speculation when the announcement of the discovery reached
Calgary, and the shares of the Company, of the par value of
$1. sold as high as $50. The Monarch is capitalized at $200,000,
and controls a territory of 122.952 acres. The second well on
the Dingman claim, distant about 100 yards from the first,
was at the last report down 250 ft. The first well will remain
closed until ample storage facilities are obtained. The
directors have ordered twelve 12.000-gal. tanks to be installed
near the well. The pressure is sometimes as high as 360 lb.
per sq. in., so that it is considered advisable to proceed with
caution lest the flow of oil should become uncontrollable.
The Calgary boom excites but a languid interest in Eastern
Canada, and does not appeal to the speculative public to any
extent. Heavy losses in Cobalt and Porcupine ventures and
real estate at fictitious values, combined with the tightness
of the money market, have rendered the lambs a good deal
kss frolicsome of late, and more disposed to heed the warn-
ings of experts and newspapers against reckless speculation.
Reports of other oil discoveries in the Calgary field and at
other western points, have appeared, but have so far been un-
confirmed.

At a meeting held in Montreal on June IS. the directors of
the Canadian Goldfields Syndicate decided on a legal distri-
bution of the assets of the Company, a meeting of the share-
holders being called for June 2s to authorize liquidation
proceedings. The plan proposed is that the properties in
British Columbia be put up at auction in Montreal on August
4. and sold to the highest bidder. The Consolidated Mining
& Smelling Co. stock held by the Company, together with any
money received from the sale will be distributed among the
shareholders pro rata. The Syndicate was organized at the
height of thf Foos'and I'oom to trade in the shares of min-
ing companies, but with the exception of the transaction which
secured it 4270 shares of the Canadian Mining & Smelting Co.
its ventures proved unprofitable.

11 l'l I

MINING \\l) & I! Mil li I'M S.s

WRAXOELI., 1/ 1>A l
Am » kxo Huroai "i Durrain Omanum i> tin Tutsan

■ k III v-i I'm I k , Snail!! , til v. l> a. Win u.m.-i, I I ,

i > Iskooi Kiiih Dunn

Uranm'll mining .li-i . « ,, i„tn| m

■■I whit ' mainland and Um

| lllllrs

(Vrangell la the en ond eldest settlement In I

■i established aarlj in the nineteenth ranturj b>
ill- R trlemn Pui I lentl) «.i- ■ irnd

H ol tin H

* ..I the Btlklne run iii I8tt, and the tollowlnj year
i am Bltks Into thai dl

In int.. McCullough and Tlbbltta, two praapectora, i id their

!. foi gold "ii tbe i

tha range and started down thi stikine river Natives
i them t.i i ten m t ■«->« belo* Telegraph oreek,

•lour gold had been found, The] reported the disco
ol rich told In what became known as the Caaalar countr] "t
northern British Colombia and flfrangell became the supply
lor the gold rush thai ensued. An American garrison
labllahed there. The Casalar properties are the rem
iiaui* of iln' richer placer deposits, and preaenl activity is
rned with the loa grade deposits.

■ 1. syndicate has purchased tin- property of
the Boulder Creek (dining Oo. on Thlberl creek, a tributary
.■I Dease lake, and hydraulic operations are being conducted
Kiny men are operating four giants, the water being oh-
i from llouldiT creek, when' a 22" II. head Is available.
The Company is owned by Lord Beauclerk and Warburton
Pike.

W. M. Ogllvle. n son of former Governor Ogilvie of Yukon
Territory who was the founder of the Yukon Gold Co.. has
■-ini. it is said, in organising a company In Montreal
to operate a dredge In the Dease Creek Mais He prospected
thi n lasl summer with an Empire prospecting drill and Found
Streak at a depth of 40 ft. on the White Horse lease.
which was purchased from J, Hyland. He returned recently
10k ili" iirill to UcOames creek, where he now Is pros-
Bench ground In thai district is looked upon as fav-
orable for hydraullcking. Ten Chinese miners, who are
remnants of a hand of 50 which started work in the seventies,

still work on the creek. -G. H. Pendleton, working on his

claims 12 miles from the mouth of McDames creek, is finish-
ing a bedrock drain two miles in length which lie hopes will

OVi n utin- the water trouble. R. W. Mitchell and Finlay

•11 are operating a hydraulic plant on Little Deloire
creek, a tributary of ThiberJ creek. Pumps were taken In this
summer and automatic gates and Barnes are used to control
rhe water. The Mitchell brothers have been working on the

creek for II years. The liufflcmcyer bench leases on Dease

creek have been acquired by .1. G. Galvin. a miner formerly
ol Nome. Alaska. Last winter two bedrock drains were in-
stalled, one 200 and the other 150 ft. long. Returning to
Wrangell last month, he reported having found gravel assay-
Mi. (6 per cubic yard. He brought out $400 in coarse gold
obtained by panning. He intends to install hydraulic equip-
ment before winter. Captain C. Conover operates a lay on

plater ground at the mouth of Clearwater creek on the Stikine

liver and is taking out a few thousand dollars each year.

The Dease Creek properties are 400 miles inland from Wran-
gell. A journey of 160 miles by river steamer to Telegraph
creek is necessary and from there a land journey of 72 utiles
and the rest of the distance by river boat from Dease lake.

L. Kirk, mining on the Stikine 25 miles below Telegraph
creek, has two adits aggregating 500 ft. in length, which have
been driven to open a deposit of bornite. Eighteen miles in-
land. J. F. Callbreath is prospecting a deposit of copper ore
near Glenora.

>ii So, i'l, and N
an, i around

«<-n and eii-bi mlli i from tldewatei bars bean optloni
" '■ '" "■' ' ' b.ii al W rangi n i be

in- on Hi.- Johnson Olson prop

be smith, its it . i. mi

on the N< i-"ii i . ii i he altitude "i thi fi

' shipment ol 16 loos ■,, u„.

"ill anil pun in ibs ia. ..in. i i ii,-, ii,,. tvet

age yield was M0.80 pe Bnglnoi nting three

mis «in make an examination "i the pi irtli during

the Oral week In July, according to preaenl sdvta
'ii,,- Olympic Mining '" claims on Woewodskl I land "•

being devel .1 bj B. B. Harvej A 100-fl ,,,iit and s 150-fl

« comprise the preaenl development The Maid "t Mexloo

three miles Inland from the Olympic els
being developed.

Devel in "'tin - "it the Jackson No I and lackson No

2 coppei claims al Lake bay, which are owned bj alien McCul
lough. N M. Tale. Ii. P. Qsas, \l L. Hut I.e. and I. Kin. bait.
A train roadway has been bull) Iroui tidewater in the claims,
a tunnel litis been driven 10 ft., and a 80-ft winze sunk Two
other -bans aggregating B0 ft make up the reel of the wok.
Four tons of ore shipped to the Tncoina smelter assay.-, I :,■ ,

i
^ lv-

, k

\ iVl

BErftT

OKF. BUNKERS. -II llllll MINING CO., -I LZEB. II.ISKA.

copper. One hundred tons of ore are on the dump, awaiting
shipment.

Burdell & Dickson have from 18 to 12 ft. of galena ore
on their claims on the left limit of the Stikine 12 miles below
the mouth of Clearwater. Samples assayed $2110 to the ton.
John Sales is developing a free gold property on Eagle Crag
mountain, on the left limit of the Stikine. 15 miles from
Wrangell. Berg & Son have a galena and a quartz property
on Arens creek. 18 miles from Wrangell. A three-mile road
has been built from the beach to their claims, preparatory to
Starting development work.

The Iskoot river is demanding the attention ol the mining
men of the district, although the Inaccessibility of the region
makes development costs prohibitive. The Iskoot is a tribu-
tary of the stikine on the south side, entering about six miles
above the international boundary line. A group of 11 claims
seven miles below the canon on I he Iskoot is owned by P. C.
McCormick. C. M. Coulter. Alex Vreatt. E. S. Busby, George
II. Whitney, Bruno Greif, John Maloney, and F. E. Bronson.
Nine of the claims will be crown granted ( patented I this
fall. A chalcopyrite deposit from 3 to 6 ft. wide has been
traced w^ith surface pits for a distance of 600 ft. Four adits
have been driven, each 60 ft. long. Thirteen different veins
have been developed since the claims were first staked In

MINING AND SCIENTIFIC PRESS

-Iiilv 11. 1914

1909. J. O'Sulllvan, of Vancouver. B. ('.. bi d three

..i ore i loin the claims us follows: (i | 102.8 oz. Bllver,
is I', copper; (2) 0.06 o gold, 41. n oz. silver, 659i lead;
:;i o. in oz. gold, 6.76 oz. silver, '• , lead.
The rock exposui tes, lim< stones, schists, and

stones, highly metamorphosed. Chalcopyrite occurs in sheared
one and also in Quartz reins which cut the
series diagonally. A report of the Tyee Copper Co. smelter
at Ladysmith, B. C. shows the result of a test shipment of
ore weighing 232-1 Hi.: i.V,; silver. 41.1s oz.; gold,

0.00 oz.: total value J44.il. The owners now are completing
plans lor another smelter test to be made before winter.
The lskoot is not navigable because of the rapidly changing
current.

PLATTEVILLE, WISCONSIN
Dull Markets. — Spelter Stocks — Paicss. — District Produc-
tion kii i ii i n i ,ii, -. — Buyebs hi or Di'aixo i in Month.

The month of .June showi d general depn ssion io both metal
and zinc ore marketa. This, according to on< o( the leading
smelter representatives operating in this field, is due to 75.-
(100 tons of spelter remaining unsold, and now being carried
on the inventories of the spelter manufacturers of this coujo
try. This representative added that no improvement in the
metal markets need be anticipated for several months, if even
then, but that as far as this field is concerned he looked for
no greater curtailment In production than has already taken
Production of raw concentrate declined considerably, and
Shipments include about 1000 tons of reserve ore carried over
in bin for several months. The total reserve held in the field
at the close of the month was a little over 5000 tons, the Wis-
consin Zinc Co. reporting that it alone was holding 3000 tons
of ihis amount. One of the leading buyers for the field re-
ported the following average of prices for the month, including
all grades produced in the Wisconsin field: 30%, $12.50; 85%,
$16; hi-,. $20; 15%, $24; 50%, $80; 56%, $34; and 60%, $::s to
$40. Li ad ore was out of favor all the period, metal ruling
at $3.80 per cwt.. with the best bid reported for ore at $45
per ton. Producers showed no inclination to respond and
only three cars were shipped. Pyrite was off, and only one
producer mil any pretl us" to offer ore in quantity, shipments
totaling less than one-half that usually sold. Carbonate Of
zinc ore ruled high. Inn producers were offered no market,
and they contented themselves by cleaning-un their product
and holding it in anticipation of a better demand.

Deliveries were made for the month by districts as shown
in 'he following table:

Zinc Lead Sulphur

Districts. Pounds. Pounds. Pounds.

Galena 4,984,000 80,000

Benton 4.216.000 1,990,300

Hazel Green 2,410.00" 60.000

Cuba CiU 2.046.000

Livingston 1,920.000

Harker 986,000 73,61

Platteville 924,000

Shullsburg S94.000

Linden 820.000

Dodgeville 342.000

Mineral Point 124. I

Highland lus.unn

Montfort 7S.0OO

Mineral Point Zinc Co 2.9SS.4O0

Total" 22.s4ti.40n ls:l,61ii 1,990,300

The gross production of concentrate for the month from all
mines aggregated 17.Tlo.320 lb. and net refined ore deliveries
to smelter 11,234,730 lb. The Mineral Point Zinc Co?, as usual.
set the oace In bidding at all points in the Beld. and carried

■ en market offerings. Heavier consignments
■ ii high-grade ore were made during the month and the Held

pared to make a better Knowing in this i
The Dodgeville district, idle lor set
has conn- to life once more in the -McKiiilay mine, which is
shipping regularly, and from which n irts are now

expected.

Sales were distributed among the buying concerns as ur
lows: Minem] Point Zinc Co., 5094 tons; National Separating
Co., Cuba, 1032 tons; Campbell Magnetic Ore Separating
Works. Cuba, 640 tons; American Metal Co.. 611 tons: Illinois
Zinc Co.. all premium ore, 558 tons: Empire Roasters.
Platteville, 451 tons; American Zinc Co.. Hillsboro, Illinois.
434 tons: Linden Zinc Co., 392 tons; Grasselli Chemical Co..
100 tons: M. & H. Zinc Co., La Salle, Illinois. 324 tons; and
I n lin Separating Works, Galena. Illinois. 85 tons. The total
was 268 cars, which is about 100 cars less than usually report-
ed prior to April, 1913.

The northern half ot the field appeared flat most of the

•n h. as far as opt rations were concerned, while the opposite

was true or all the districts in the southern half of the field.

YERINGTON, NEVADA

Hi t istonk Mine. — Pinegrove Development. — The Roi klaso
Mine. Orehodies. Mills, and PROPOSED Treatment ot iiik
Ore.

It is locally reported that the Mason Valley Copper Co. has
a bond on the Bluestone mine. Shipments are being made to
the smelter at Thompson, and the sale of this property has
aroused a great deal of interest in the district. It is one of
the oldest mines in the copper belt, and considerably more
than 1,000,000 tons of ore is said to be blocked out. The ore
is a chalcopyrite, disseminated through altered limestone.

The Pinegrove Nevada Gold Mining Co. has been operating
its 10-stamp mill all winter. Reopening of the old Wilson
mine by this Company has stimulated prospecting in the dis-
trict, and several discoveries of gold ore have been reported.

The Pittsburg-Dolores Mining Co. is operating the Rockland
mine, three miles south of Pinegrove. This property was dis-
covered in 1868 and has been operated at various periods since.
The orebodies are in a fissure, formed by the intrusion of a
wide rhyolite dike into granodiorite. Wherever the best ore-
bodies are found today, the fissure is wide. The mine is
opened by a series of adits and a depth of about 1000 ft. has
been obtained. At the present time new chutes are being
constructed, and some of the old drifts are being cleaned out
to be ready for production by the time the new mill is com-
pleted. The first mill on the pwperty was built about 1870
in Keene canon, one mile north of the mine. It was de-
stroyed by fire within a few months. After a number of
years, during which time the high-grade ore found was hauled
to the Wilson mill at Pinegrove. the property came into the
hands of Gov. Blasdell of Nevada. He built a 10-stamp mill
at the mine, and used the Washoe process in treating the
tailing. Most of the development work in the mine was done
during his ownership, and until the mill burned. After
Blasdell's death the property was idle for some years. In
1H02 it was acquired by the Nevada Chief Mining Co., which
built a 5-stamp mill and concentrated the tailing from the
plates. Later, a 15-ton cyanide plant was installed, but was
not very successful, as it was found impossible to leach the
tailing if it contained any slime.

The ore has always been difficult to treat. Ground to 100
mesh only about 20 r ; of the precious metals can be caught on
plates, and the best ore, which is a hard quartz containing
pyrite, contains practically no free gold. Much of this was
left in the mine and used as fill in the old stopes. In 1907 a
dry-crushing mill of 75 ton daily capacity was erected. 14 by

II I'M I

MIMV, AND S< II Mil H PH

finer hum 10

mi-Ill plan

I n>ullstil<> al I Ik
I* lo br grOI I, 111 It tubr null, illi.l III.

show n
that an extraction ol d wlthonl serious

difficulty, li -ii, ti i . t - .
Um mine should renture,

'■i IDAl I / \l: I. i// A h

Sill mil \ IN Tlrn . VM.Aiiilii.i.ii mi Cogs ONAUSTH

— K»m> Hum in jAuaoa Sm i Down. Mixiifa Mn

Kllllli l'\-ll«i. Ml si LOOTED.

An American mining man of Teplo, Arthur F. Flynt, who
recent]) arrived in San Francisco, Btates that mining opera-
tions an al a Btandatlll in thai territory. Mr. Flynt bad just
eompli anlde plain al the Purlelma mine, a

propvrt) thai In 1 had been developing for several years, and

HOSTOTIPA^l'ir.l.-i DISTRICT 01 JALISCO

had been milling at r 1 i * • Zopilote mine, another Tepic prop-
erty that he had under lease from a German company. He
remained in hiding at one of his mines following the Amer-
ican occupation of Vera Cruz, and up to a short time before
the capture of the City ol Tepic by the Constitutionalists, go-
ing into the Tepic capital after the rebels entered there.
While in the capital he talked with General Obregon. the
Constitutionalist commander, who told him that the friend-
ship of his followers for the Americans would continue as
long as no move toward intervention was made, and that the
lives and property of Americans would lie protected. II che
Americans made any further advance into Mexico they would
have the Constitutionalists to fight, the General said. Mr.
Flynt reports that after Vera Cruz was taken, the Federal
forces in Tepic confiscated all the property of the Grant Bros.
Construction Co., the American concern that built the South-
ern Pacific railroad through Sonora, Sinaloa, and Tepic as
far as the Tepic capital. Supplies of the Waters Pierce Oil
Co. also were confiscated.

rontrolli

i Mini: p.

Il(< ami pr.ii

i -in- oiilj i.iiih i mining n

soil-American outbreak following the Vera

the El Favoi , amp in the Hoi lotlpaqul

■ JallaCO, C, II. IN null. I) an An B, ami i. I

Bngllsbini - Hoadlej i

"di-nl .11 Kl Kami', ami Wllllal

nam Both fori and

ai.i Hoadley's bead and face were horribly mutlli

secure several gold-filled teeth fr his mouth. Waltei Neal,

manager al El Favor, who «a f . Blabbed in the back, i
Urely recovered from bis Injuries since reaching the I
States and no* is acting as conanltlng engineer foi the

MaKeever li raera ol BH Favor, who also im .

in .Molilalia and Arizona. The CuaadoH sll\.

mine in the Hostotlpaqulllo district of Jalisco has been

confiscated by Mexicans, The mine is the property
nf the Consolidated Mining Co. of New Jork and Lo \i
II is stated that the Mexicans held the mine until the dyna-
mlte and other supplies found there were exhausted, and that
high-grade ore to the value of P25.000 was taken om and
disposed "I i" Mexican ore buyers. The Federal troops in the
district either were powerless to drive off the looters or
made no effort lo do so.

Ill I. A H I YO, RHODESIA
Work ov the Rhodesian Geolooicai Suuvev. Qeolout <m

GaTOOMA Ills-run r.— Cl sum MILLS SUOGKSTED.— ASBESTOS

ami Chboiie Iron Ore Deposits. — Tin. New Mikes.

From an economic point of view, the report of the director
of the Rhodesian Geological Survey for the year 1913 is cer-
tain^ the most important that has yet been issued. This
deals with operations for the third complete year since estab-
lishment of the department, during which period work was
concentrated on the goldlields surrounding Gatooma in Ma-
shoualand, which is the centre of what is probably the most
extensive and valuable mineralized area in the territory.

About four or five miles from Gatooma is the Cam & Motor
properly, which is one of the three leading mines of Rhodesia.
Close to ihe Cam & Motor are the Eileen Allanah and Eiffel
Blue mines. The Gatooma district as a whole may be sub-
divided into other subsidiary areas, such as the Goldeu Val-
ley and Shagari. each of which includes numbers of prop-
erties of some importance, the majority of them being worked
by syndicates or tributing parlies. In the Shagari district
the gold-bearing belt consists of greenstones and felsites.
Judging from the location of the successful mines, the green-
stones appear to be the more favorable country rock, with
the qualification that it is not the areas of pure greenstone,
but areas of greenstone containing small bodies of felsite
that are most productive. The larger bodies of felsite also
contain numerous gold-quartz veins; but a number appear
to be of small size, though rich in gold down to water-level.
They have not been opened to any appreciable depth below
this. Although large orebodies, requiring a considerable
amount of capital for development and treatment will no
doubt be discovered from time to time, the number of rich
veins of the smaller size makes the district a favorite with
Hie individual worker and small syndicate.

In his report, the director of the Survey. H. B. Maufe. makes
a valuable suggestion in regard to the Shagari area, as fol-

MINING AND SCIENTIFIC PRESS

July 11. W14

lows- "The cost of a plant for treatment, and of its trans-
ind erection, and frequently the lack of sufficient water
at hand, are factors which retard the working of these veins.
The Shagari district is one of those which should receive
I ration in the event of a decision to erect custom mills,
as recently suggested by the president of the British South
Alii, a Co." Although the subject of custom mills is per-
haps a little outside the province of a geological survey, this
in no way detracts from the importance of Mr. Maufe's rec-
ommendation that the Shagari area should justify the erec-
tion of government-owned mills. Hitherto, custom mills, such
as are provided by certain Australian governments, have
been given but scanty attention by Rhodesian and South
Urban authorities. A little money has been spent in this
direction in Natal and Zululand. but generally speaking the
South African governments have done practically nothing
to directly help mining enterprises among the smaller capi-
talists. If the recommendation of the director of the Rhodes-
ian survey is heeded, it may mark the commencement of a
new epoch in mining in South Africa.

In other ways, the latest report of the Survey should be
of considerable value to prospectors, as it contains a num-
ber of facts of interest relating to the distribution of gold
veins in the Golden Valley and Shagari districts, and the
character and mode of occurrence of different types of veins.
Not much can as yet be said regarding the distribution of
the gold within the veins themselves, as little really valu-
able information is as yet available. In the report, Mr. Zeally
contributes some valuable observations on ancient workings
in granite country east of Gatooma. It is of particular in-
terest to notice that a conclusion announced in the previous
year's report, namely, the close association of the gold ores
with felsite. finds many examples In the areas considered in
the present document, and is strikingly illustrated in the
case of the Golden Valley district.

Discoveries of extensive deposits of asbestos and chrome
iron ore in the Victoria district of Mashonaland are attract-
ing a great deal of attention at present, both in Rhodesia
and .loltannesburg. A company with a capital of £125,000
has been formed to acquire and work the occurrences. A. H.
Ackermann. Clement Dixon. Colin Campbell, and other mining
engineers have reported favorably on the properties. The
asbestos venture is known as the King's Asbestos, and in
the course of his report Mr. Ackermann. the resident min-
ing engineer of the British South Africa Co.. stated: "I am
much impressed with the possibilities of this asbestos prop-
erty, and although little work has been undertaken to prove
the extent of the area, indications at present are certainly
most encouraging, and lead me to venture the opinion that
it will be the means of opening a new and extensive industry
in Rhodesia." The most favorable features in connection
with this property are the high quality of the asbestos in
the rocks as so far proved, the finding of profitable asbestos
in every working place in the area referred to and outside,
the facilities for a cheap system of bench mining, the proxim-
ity ol a continuous supply of water and cheap labor, and
the past satisfactory results of the owner's operation, which
were undertaken under most adverse conditions. Of the
chrome iron deposits. Mr. Ackermann says that it is not pos-
sible to gauge the extent of the deposits on account of no
development having so far been undertaken. He suggests
that immediate steps should be taken for the opening of
these deposits, and said: "A few months' serious development
work on these deposits should open up sufficient profitable
chrome to justify the extension of the railway from Victoria
to the bottom of the hill." It is understood that the dis-
coverer of these deposits is Mr. Turner, who is well known
on the Rand. Chrome ore production of Rhodesia in 1913
was :,<;.:'.< I tons. Reports of a discovery of tantalite in the
Victoria district are also current, and it may be that this
area, which has so far been considered to be of agricultural

value only, will yet develop into an important mineral-pro-
ducing region.

The large new producing gold mines, such as the Shamva
and Cam & Motor, have already had a favorable influence,
and the gold output of 64,894 oz. in March easily beat all
previous records. From now on a steadily increasing monthly
return may be anticipated. The Shamva is understood to
have made a profit of about £11,000 in April, and the Cam &
Motor, desplfe treatment troubles, is reported to be doing
well, treating 11,120 tons In May for gold worth (65,000. The
Bell is also said to be securing good results. As these mines
get into full working order, better yields will be forthcoming.
The Antelope's production so far has been disappointing.
The Falcon is expected to commence crushing within the
next three or four months. As to the other mines, it may-
be noted that sinking the new vertical shaft has been tem-
porarily suspended at the Globe & Phoenix, to allow of the
erection of a new head-frame and hoist plant. The Eldorado
Banket mine is reported to have opened some rich shoots
of ore recently. This property's output in May was $44,000
from 4954 tons, with a profit of $20,000. '

JOHANNESBURG, TRANSVAAL
Mineral Outpot op Sooth Africa. — Transvaal ix April.—

EaSI Rami PROPRIETARY PROPERTY. — LITIGATION.

Exclusive of diamonds, the total value of the mineral out-
put of the Union of South Africa for April was £3.193.255.
Gold mining in the Transvaal, although slowly improving, has
not fully emerged from under the cloud of uncertainty caused
by labor troubles, the output of gold in April only totaling
687,988 oz. valued at £2,922,388, compared with 792,082 oz.
valued at £3,364,650 in May. twelve mouths ago before labor
troubles started. In April, the Transvaal had 92 producing
mines with 9803 stamps and 293 tube-mills at work, yieldiug
687,816 fine ounces of gold. Considerable attention is at
present devoted locally to the figures of the gold output of the
Rand on account of the Tact that since the labor troubles of
July, they have until the last two months consistently shown
a decline, in place of a steady increase as before. This de-
cline has in many quarters created the impression that the
Rand has reached its zenith as a gold producer, and the
previous confident tone has given way to pessimism, so much
so. that even the Chamber of Mines seems to have been affected
thereby, as shown in the recent statement submitted to the
Economic Commission. As far as possible, the Mines Depart-
ment has attempted to minimize the bad effects produced by
this statement: but the fact remains that some time must
elapse even if the gold output of the Rand again assumes the
steady progressive increase so characteristic of the industry
prior to last July.

The last quarterly report of the East Rand Proprietary
Mines shows that the shrinkage of profits indicated at the
recent annual meeting has already begun and that the amount
of development accomplished is still on the wrong side. The

Company has now about E250.I standing to the credit of the

development suspense account, a good deal of which will have
to be spent before the ore reserves of the concern are placed
in a satisfactory position. The difficulty still continues of
finding sufficient faces where the expenditure on development
seems to be justified, a difficulty likely to be experienced until
the area beyond the water dike is drained. When it is stated
that a large quantity of water, estimated to flow at least at
the rate of 3,000,000 gal. per day. has to be overcome, much
of which has to be pumped from a depth of 4000 ft., the diffi-
culties of the position will be easily recognized. Taken on the
whole, therefore, it seems probable that at the East Rand
Proprietary the position will probably grow much worse be-
fore an improvement can be expected, so that the outlook is
anything but encouraging.

It I'M t

MIMV. I Mil |i l'KI ss

■ <u 41 Trai< Ltd

-•riii'-i

(nun Hi.- lull, ilir Ult.i r.uiiii.

.ii the I iiim- aKr.-.-.l .m .111.!

U ..ii.' urn.
nod iik.'i> ihm nnral almluu •-»».■» mold !»• beard, bm
groups affected compromised »ith the pewtf nun
was t h.it |g which k
■ • illon from tor pointing

il ih.- Main - lying mi the Matron-

ly, between Bokabura and Benonl Thli
ade uodei lent, but n transpired

from the evidence host little eras known ••! the character "i
tin itit-f M-ri.it so long ago The iudgmenl was la the
tmt a few Saatlaj boalden al conglomerate bad been
'■i. Qaul (..r the Indication ol th* outcrop .n the
Mum Reef, and he therefore lost his claim tor compensation
amount <■• di Qnastion arose dnr

lug the trial as to what really constituted an outcrop, no less
th. hi «i\ expert mining engineers and consulting geologists
fallloi to satiaf) tti.' Judge In this respect The trouble arose
owing to the conglomerate bed occurring as a sub-outcrop, and
i.'ft for the judge to define an outcrop as the place at

Which a lied actually outcropped at the surface.'

VELBOVRSE, M 8TRALIA

-i »M. MlMKM. IHDSX, -MOLTBDIKITl — IW B T tTU W "I

Mimm. Km.im.u-- Kim rail w WOBK IN Aistrm.ia.

The Queensland Government has Issued a 'Queensland Min-
eral index and Guide.' which constitutes the lust attempt
j the mines department In any "t the states to adver-
tise the mineral resources of that state, it cannot tx

that the production is quite up to the beet standard of
Canadian and American wort in the Bame line, but it is not
far behind, and In BCCUraC] and thoroughness it
nothing whatever i" be desired. Australia has always
been t'»i anxious t.> keep her good things to herself to do
very much advertising; but this publication is only one of
man] si-ns thai a more liberal policy Is being entered upon.
There is. however, much to be said for the hint suggested
by the 4usfrafian Jtfininp Standard, that it Is not very much
ns. advertising the mineral resources of any state till the
laws have been sufficiently liberalized to offer some Induce
in. in to foreigu capitalists to put their money into local
mining properties, Without sum. .thing like real secuiit]
hi tenure they are not likely to take the risk of any great
investment of capital.

It is amusing to note how suddenly molybdenite has be-
come prevalent throughout the whole of Australia. Queens-
land has mines which it claims to he the best in Australia:
New South Wales makes similar claims, with perhaps less
warrant; Victoria is working some deposits on which the
government geologist has just reported: Western Australia
ami South Australia both rei>ort discoveries which, as a
matter ol course, are expected to prove valuable; and it is
understood that Tasmania also has its discovery of the min-
eral. There is no need to point out to readers ol the Presj
that all these discoveries are i losi 1} connected with the extra-
ordinary increase in the market va'ue of the metal. It is not.
unnatural that when the metal is wanted it should be looked
for: but it is surprising to learn of so wide a distribution of
so supposedly rare a mineral. In some cases of course; the
presence of the mineral was known previously, and the market
rise has led to the exploitation of deposits hitherto neglected:
but it would not be very surprising to learn that one or two
of the discoveries are not quite so 'molybdenous' (if such a
word may be coined I as is represented.

annual meeting ..i the Aii-n.iii.in In
iCogini i in Maibonrns and was i

•■ffslr .,( in,

ii.

arrangements were hi neans ■ellafactory, and Uu

■run »"» niiini. i.nti!

own much | ,. I,,, i ,, ,

tainl] " I" «luil It had I" off. r

abl) He in.. i. Ntlng Held in in.

ra in us o and the greatest

. . air.- ..I mining Industi r. Yet B .i got

iii.ii.ii. Dayleaford, or tram In toad ..t Uu

visit »us paid in Walballa, i famous owing to tbi

"t ih.- Long I'u i mid Long T I Extended, but no*

worked out The onlj other plans honored bj .i call was
vYouthaggi; Mi. icons ..' the government's expa snl In

\A*V ,BW * lfl 'yJ |

•noigo / / -X

\ 1 1 -<C \ f^-^X / . \

/><^S-s=fe-sV'- — 3L \^

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/ / ^\ I \

AX ^ —

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pPR^Zflt?

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1 v~"~

^£S W jr Jf
\ r I J

N. s^ J^^ / Southern

Oc«MTi

PART ii! I III SI VI I "I I II mill V.

coal mining, an experiment for which a strong effort is being
made to have it regarded as a success, but which would in
point of lad he regarded as a failure if it were being worked
by a public company instead of by the state. [The mine pro-
line, > about 2000 tons ol real per day.— Editor.] Altogether ii
cannot be said that the Australasian Institute of Mining
Engineers is on the up-grade.

A leading article in the Australian Mining Standard on
Kbit ric Work in Australia' has attracted considerable al
i.ntion. and. strangely. Inn significantly enough, baa been
gi nerally endorsed by some of the large electrical firms. The
article begins with a statement that "the work ol the Victoria i
and Australian cities requires to be put upon an entirely new
basis." and proceeds to ask. "why Incompetent workmen
should ever have obtained a fooling there. Men are noi per
mitted to touch gas pipes or water pipes withoui posse Sing
a license. Why, then, should absolutely unlicensed men be
allowed to meddle with the Important work of effecting
electrical installations in either dwelling houses or business
houses? It is believed, and the belief is probably not very
far from the truth, that there are more incompetent men
engaged on this work than in any other part of the building
trade: and the amazing thing is that the insurance companies
have not before this taken a hand in the matter, and insisted
on the electrical work being done to their satisfaction be-
fore they will consent to insure properties in which the
electricity has been installed."

MINING AND SCIENTIFIC PRESS

July 11. i:iH

ARIZONA

Cold, stlv r, copper, lead, and zinc were mined in Arizona
in 1913 to the value of 170,876,027, according to Victor C.
Heikes of the r. S. Geological Survey, showing an increasi .
as compared with 1912, ut (8,824,243. The value of the gold
production in 1913 was $4,023,911: silver. (2,384,847; copper,
$G3,228,127; lead. (710,370, and zinc. (527,972. There were 4::^
mines producing these metals in the state in 1913. as against
II", in 1:0:;. and the total quantity of ore sold and treated
was 7,931.862 short tons, an increase of 1. 1191.780 tons.

Cot alas Cm mv

Sulphide ore has been opened in limestone in the C:tluniet

U Arizona company's Cole area at Bisliee. The Copper

Queen test mill lor the low-grade ores of the Sacramento hill
and Czar shaft upper levels is nearly completed. Churn-
drilling is still under way in this area. The Shattuck mine

is developing well, and ore shipments amount to 400 tons

per day. The Mascot Copper Co.. operating at Dos Cabezas,

is to construe) a line from the South Pacific near Willcox
and connect with the Maricopa Copper Co.'s line at Dos Ca-
bezas. a distance of 18 miles A company called the Mascot
4: Western Railroad Co. has been incorporated with a capital of
-nun shares at $10u eacn.

Mohave Cot s i v

The Grand Gulch mining district is described by .lames M.
Hill in Bulletin 580-D of the D. S. Geological Survey. He
examined the mines there in November 1913. The district
is most easily reached from Moapa, Nevada, on the main line
of the San Pedro. I.os Angeles & Salt Lake railroad, and" 28
miles northwest of St. Thomas. Nevada, the supply point for

NW.

o' — ^

'■•: n titmfl

F r;ii.„ s

SE.

Sandstone

^V^Sondsio-ie

CalcaretKis.6^
sandstone/

.... Z Q

Filling

VCa'careou*
\ ssnostofe

esiorJJ/

Fillinj

Limesti

ShaO to
SOO-footte*ti

PLAN. 60-FOOT LEVEl

PLAN AND ELEVATI09 OF THE OEAND GULCH MINE.

part of southeastern Nevada and northern Arizona. The
climate is typical desert weather, and there is a fair quantity
ot limber available. The Grand Gulch mine is 54 miles ease
of St. Thomas. It has been developed by a shaft 500 ft.
deep, and levels have been driven at 100. 200. 300. and 400 ft
Owing to the peculiar shape of the orebody the levels are
generally of circular plan. At 200 ft. the ore zone is about
300 ft. diameter. In the upper portion of the mine the ore
is in sandstone, in the lower portion in limestone. The ore
consists largely of malachite, azurite. and brochantite. with
irregular masses of chalcocite scattered through it. The ore
does not extend below a depth of about 250 ft., there being
no copper minerals at 300 or 400 ft. The copper was de-
posited in the upper workings by generally downward-mov-
ing waters. Fifty men were employed in the fall of 1913. The

Bronze L. toinc is 3 miles southwest of the Grand Gulch, and
has been opened by a 200-ft. incline shall, now caved to about
The ore minerals are largely sulphides, with smaller
s of azurite and malachite. The Copper King mine
is 10 miles east of the Grand Gulch mine, near ihe Colorado
rivi r. Evuy two months a carload of 23 to 265j copper and
$'■', to $4 silver ore is shipped by Bishop Whitehead.

Yavapai County
ial Correspondence.) — There is a revival of mining in
the Thumb Butte district, and miners are busy at many

claims. The Little Jessie mine, at Chaparal, is producing

ore again, and gold ore is being sent to the Hayden smelter.
Phoenix. June 28.

CALIFOMNIA

Amador COUNTY
A retaining dam is being erected by the Kennedy company
to store the tailing delivered on Bright ranch by the wheels

described in this journal of May 9, 1914. The Bunker Hill

company has declared its monthly dividend of $5000, making

C I for the current year, and $732.(100 to date. More

mini is are being employed at the Plymouth, preparing the
mine for supplying ore to the new mill, which is well under
way.

Ei.DoitAMu County
A 12-drill 2-stage air-compressor and other equipment has
• ii installed at the Oro Fino mines, Shingle Springs, con-
trolled by the Tredwood Syndicate, Limited, of London. De-
velopment of the lower levels is now under way. C. H. James

is resident manager. Seven mines, in the Volcanoville dis-

trict, near Georgetown, known as the Ruby Consolidated Mines,
and including the Aphrodite. Pluto, Proserpine Wedge, Garfield,
Garfield Extension, and Little Gem have been bonded to a cor-
poration headed by W. I. Smith from W. C. Green. The

fiftieth anniversary of the Bullion Bend hold-up, in which the
Washoe stage was robbed of gold worth $C0,000, was observed
al Placervllle on July 2. The men were captured and several
killed, but the metal was never recovered.

Mariposa County
(Special Correspondence. I — John McAUester and associates
have taken a working bond on the Sweetwater group of claims,
which has a 10-stamp mill and other equipment. Her-
man Schlagerter of San Francisco has been visiting his
brother Charles A. Schlagerter at Mariposa, and has examined!
the Hite mine on the south fork of the Merced river, which is
idle for want of capital to put the necessary equipment on

ihe property. There has been nobody from the State Mining

Bureau in this field since 189R, until F. L. Lowell came here
recently. He has some difficulty in properly finding un-
patented claims of recent location. It is suggested that county
supervisors could pay the salary of a Bureau officer, and have
the mining areas thoroughly examined, as the appropriation of

the Bureau is limited for this work. Judge J. J. Traboceo of

Mariposa, in the case of Sidney r. Pierce on injunction proceed-
ings has increased Sidney's bonds from $1000 to $4500. This:
case involves the title of the Buena Vista copper mines in the
Green Mountain district, in which Sidney claims the property
by prior location, and has sued Pierce to recover the prop-
erty. Pierce located the property July 9. 1912, and has been
developing it, and mined and shipped $35,000 worth of copper
ore. The Sunnyside mine at Sherlock, owned by Mrs. Emma.

11. l"ll

MINING W . i ii |, ph

nn. I a 1001

Ing h»» bw
.ill with i Hood)

II put in 181

HornlUN has bun sampled bj T C I

The

•-.milled In I ...II ...

atlng mi mineral Ian. I » bleb

nut] Ii quite

nd ihoald laia mini Ii

troubled bj men who bin in. .1 ■ homwtMd on the

ground from which the m i Ita water.

IIHNUl. Jull'

I'i i >i *- r... mi
on hu boon opined In thi trade nun.- sen Oreen
rllli •■•• ih.- owner, D Helntyre Diving suite in being
■ end v B ki lecl gravel In the
mirili r.irk ..l the Feather river, near Betden. Thej are work-
ing for abonl 30 mlnutea ai s ii in 10 to i". ft of water.

Blutelng and other work is in full swum on Kelson creek, and
thin will be plenty ol water for another month.

Sll 181 V Oil \ IV

The Mountain Copper Co. has arranged to Install al Kes-
wick, "."lii'.. 60-hp., 76-hp., ami inn hp. Induction motors which
have been purchased from the General Electric Company.
Siskiyou County

Owner* ol the Oraal Northern mine, an old producer, are
mining or.' ror ■ teal run. If satisfactory, the old MeCook
mill win be moved to the property.

Tkimtv County
ipondence.)— Everybody lias bad a good
season's bydraullcklng. Lorenz Bros, have just finished a
satisfaciory run on the old Junkan's ranch, or lower Weaver
Creek mine.

Weavervill.-. June :'.".

Tioii m\k County

i Special Correspondence. I — The collar of the App mine
shaft is being repaired, and other work is going on with a
view to resuming mining. It is understood that a portion
of the mill will be put in working order at once for mining

the ore on surface. The Burnham mine, on Knights crei

recently bonded to M. Johnson, is yielding high-grade ore.
A 480-ft. adit is being driven, through which two veins will

be worked. Sinking and driving is in progress at the

Franco Contention mine. In the Jupiter district with 30 men.
The prospects are most encouraging, and additional machin-
ery, including a large hois', will be installed in the near

future. Ai tin Ditch mine, the 1650 and 1809-ft. drifts are

being extended toward the rich shoot that made a record for
the property nearer surface a few years ago. The mill is

operating continuously with good results. The Leap Year

gravel mine near Jamestown, has been bonded to George
Tatton by Joseph Hosklns, and an effort will be made to open
the auriferous deposits, which are believed to be but a short

distance from the point reached by the former operators.

Thirty-five stamps of the milling plant of the Shawniut mine
are in operation. The ore is conveyed from the hoist in the
mine to the mill in electrically operated cars, an improvement
which was only recently finished. A portion of the force em-
ployed is still engaged in making repairs and improvements

that will add greatly to the efficiency of the plant. It is

reported that negotiations are under way for the consolida-
tion of the Mack and Longfellow mines under new manage-
ment. The Mt. Zion mine, in the Groveland district, is

being reopened by Ernest Caplinger. The shaft has been
cleaned and repaired to the water level and some develop-
ment work will be started in the upper workings soon. The

Company operating the River Gravel mine at Jacksonville

.ill be in.. i

quantlt) «i travel ihl

< olob w"

La Plata Coi ■> <\
ii" district Ii

which ■ , lh. |i ft R Q H,,.

iii miles b) iu district I

a-leve! i hi on »hli

'nil- gold, Silver, and COppc I Son,.' hi:

■hipped '" Durangc laat September, a fair a ml "i prw

pecting is now being done on the various clali

Ti mi; i'"i mi i iini-ri i i in i k i

Estimates ..i the June output ol the district, mad July

ih. following totals

I'll'"'- Tonnage. Av val. i;

Golden Cycle 11,000 120.00 $ 880,1

Portland, Colorado City... :>.." 20.00 190,

Portland, Cripple creek... is.mhi lmm 16,180

Smelters i.oeo :.:..""

Stra s Independence. . . 1 1,828

Colburn-AJax i.i 10 i 00

Wild Horse 1,200 3.24 8,888

Neville Ki, , Coinage ;"" 8.00 8,600

Gaylord-Dante 1,600 2.30 8,460

Kavanaugh-Jo Dandy 1,860 1.40 J..",li"

Isabella mines ::," 2.00 1,500

Total 85.323 $1,151,985

The Vindicator company and lessees shipped aboul 3500.

ions, worth $1(15.000. The United Gold Mines, worked It i

I. ase. produced 100 tons of ore. From the Abe Lincoln 450
tons of $21 or.- was mined. Lessees at the Dexter extracted

665 ions, worth $12,0011. The Golden Cycle was the only

company to pay a dividend in June, the amount lain:.- si:,.

July dividend-; are estimated at $260,000.

IDAHO

Bonner Cm mt
In a raise between No. 4 and 1 levels in the Idaho-Conti-
nental mine, 26 miles from Porthlll, there is 6 ft. of high-
grade and 6 ft. of mil! ore. The raise is up 330 ft., and will
be finished In 30 days.. The 200-ton daily capacity concen-
trator has been completed, also the hydro-electric station on
Boundary creek, midway between Porthill and the mine, to-
gether with the transmission line, and the entire equipment
is ready for service at any time. The mill will stari about
July 15. and by August 1 crude ore and concentrate will be
shipped. To facilitate handling this product, an aerial tram-
way, 1500 ft. long, will be constructed over the Kootenai
river by the Riblett Tramway Co. Ore will be hauled to
the river by 'caterpillar' engines and Troy 15-ton trailers.

Costeb County
The genesis of the garnetiferous copper deposits near Mac-
kay are described in the June issue of Economic Geology by
Joseph B. Umpleby. The district lies at an elevation of
from 588S to 9600 ft. above sea-level. Rock formations are
Carboniferous limestone, intruded by late Cretaceous granite
porphyry, and trachyte porphyry. The orebodies occur within
the main igneous mass, well back from its border. Most
of the production has come from shoots of ore situated from
1"') to S00 ft. out in granite porphyry, and two carloads was
obtained from an orebody 1201 ft. back from the main igne- ■
ous contact. No deposits of proved importance occur in the
main limestone area. In places the orebodies are closely
associated with large blocks of limestone included in the

MINING AND SCIENTIFIC PRESS

July 11. 1!U4

igneous rock. Garnet rock accompanies all the Important
ore-shoots, and in most of the primary ore this mineral is
the dominant constituent. The orebodies vary greatly in size,
and even more in shape. Three principal groups are recog-

l HAP \\li SECTION or A SM.U.I AREA si iikoi \nl\i, lit I
l Mi'lia COPPEB ( o.'s PRINCIPAL DEPOSITS.

nized, one in the Copper Bullion and two above the Alberta
adit. The primary ores consist o! an intimate intergrowth
ol garnet and chalcopyrlte, and the latter contains 5 to t;< ,
copper, with a little gold and silver.

SllONHOXF. C'dl'NTV

A mortgage totaling $20,152 and covering the claims of "7
creditors of the Idora Hill Mining Co. has been placed on
record at Wallace. The deed includes several mining claims
and all tools, machinery, mills, and other equipment.

Annual meetings of the Moon Creek Mining Co., Aurora-
Sampson Mining Co., Valentine Mining Co.. and Four Tim-
bers Mining Co. have been held, and the various properties

owned were discussed. A meeting of the Gertie Mining

Co. was held at Spokane on June 2o. when the capital was
increased, and it was decided soon to begin driving a lower
adit 3700 ft. long. The portal will be about 1000 ft. from
the schoolhouse at Burke. A vertical depth of 1400 ft. will
be obtained by the adit, which will cost from $50,000 to
$65,000. A compressor plant is to be installed. A. A. Booth
Will he in charge of the work. The property is a promising

one. The Hercules Mining Co. will place in operation in

its mines two 8-ton, :;o-in. gage. 500-volt electric mining loco-
motives recently ordered from the General Electric Co.: and
the Snowstorm Mining Co. at Larsen will install a 275-hp.

induction motor and starting panel. After an idleness of

nearly two years, the result of litigation with the Bunker
Hill & Sullivan company, the Caledonia mine, near Kellogg.
has resumed operations. One of the stipulations in the com-
promise agreement that ended the controversy between the
two companies was thai a unit of the Bunker Hill & Sulli-
van mill should be set aside for the treatment of Caledonia
ores. The plant has been under repair for several months
and was given a trial run recently that proved satisfactory.
The mill was started running one shift daily last week and
is now treating about 10(1 tons per day. During the shut-
down, connection by means of a raise was provided between
the Caledonia workings and the long lower adit of the
Bunker Hill & Sullivan, permitting the product of the mine
to be handled through the latter at much less expense than
under the former system of operating, and it is estimated
that the Company now will average $40 to $45 per ton net
on its ore. There is a large tonnage in sight in the mine,
and engineers regard it as among the long-lived producers
of the Coeur d'Alene lead-silver district. Charles McKiunis.
one of the best known mining men in the Coeur d'Alene.
aeral manager of the Company.

XEVADA

Esmeralda C'oimv

The estimated production of the Goldfield Consolidated

mine in June is as follows: Ore treated. 25,924 tOHs: gross

extraction, $295,000; operating expenses. $155,000; and net

Itlon, $140.ooo. The Jumbo Extension company is

now shipping loo tons of ore per day to the Goldfield Con-
solidated mill. — A 20-ton cyanide plant, consisting of three
50-ton leadiing vats, has been added to the Diamondfield
Mining & Milling Co.'s 5-stamp mill. The ore averages $10

per ton. More pumps have been ordered for the Atlanta

mine. These are to be made by the Piatt Iron Works of Day-
ton. Ohio, whose western representatives are C. C. Moore &
Co. of San Francisco. The pumps are one Smith-Voile 6'^ by
16-in. triplex, and one 6-in, Piatt centrifugal, electrically
driven. The total pumping capacity installed will eventually
be 800.000 gal. per day.

Humboldt County

(Special Correspondence.) — On June 15, John F. Cowan of
Salt Lake City, took his place as president of the Rochester
Mines Co. The output of the property, from a depth of about
alio ft., is nearly $700,000. the ore averaging between $20 and
S- > per ton. Recent work on the deeper levels has been en-
couraging. In the Codd lease, 4 ft. of ore was cut, 2 ft. of
which is worth $35 per ton. At S00 ft. from the portal, the
east vein has been cut in the main cross-cut. The first ship-
ment from the Rock lease on the Nenzel Crown Point property

has given returns of better than $20 per ton. About 8000

tons of good shipping ore has been developed in the Kahaler

lease on the Weaver claims. Four feet of $60 ore has been

recently opened in the Buck and Charley lease in lower

Rochester. Regular shipments are being made from the

Nevada-Packard lessees. Kromer and Hampton. The Fed-
eral dredge which was sunk a few weeks ago, has been re-
paired and is again in operation.

Rochester, June 29.

Lanukr County

(Special Correspondence.) — The new camp of McCoy, found
by Joe McCoy, about 17 miles southwest from Copper canon,
near Battle Mountain, is reported as promising. Gold ore is
being opened, and also silver-lead ore. An engineer recently
returned from this new find has described the geology roughly,
as consisting of lime and porphyry lying on a granite floor, and
intruded by dikes.

Battle Mountain. June 29.

Nye County

A new double-drum Nordberg hoist is being erected at the
Wandering Boy shaft of the Jim Butler mine. The machine
will be driven by a 125-hp. electric motor, and has a hoisting

speed of 800 ft. per minute. A larger yield is expected from

the Montana-Tonopah in June. During the past week the

mill treated 150 tons with 93'; recovery. The West End

mill is treating 215 tons per day. At 1100 ft. in the Ex-
tension, the Murray vein is 9 ft. wide, worth from $30 to $75

per ton. The 1000, 1050. and 1130-ft. levels of the North

Star are improving.

Storey County

All disputes on the Comstock lode have been settled, and

development of the lower levels is now assured. A tube-mill.

Dorr classifier, and other machinery has arrived for the Yel-
low Jacket cyanide plant.

M-:\\ MEXICO
Lame gains were made in the production of gold, silver,
copper, and zinc at mines in New Mexico in 191". according to
figures compiled by Charles W. Henderson, of the I". S. Geo-
logical Survey. The production of gold showed an increase of
$97.4mi over the output of $7S4.446 in 1912: silver, an increase
of 94,572 oz. over the production of 1.536.701 oz. in 1912: lead.
a decrease of 1,547,654 lb. from the yield of 5.494.01S lb. in
1912; copper, an increase of 22.277.742 lb. over the yield of
34,030,964 lb. in 1912; and zinc, an increase of 2,956,524 lb. over
the output of 13.5C6.637 lb. in 1912. Despite lower average
yearly prices for copper and zinc, the total value of the out-
put was $11,694,002. an increase for 1913 of $3,166,047.

II I'll

MINING VND SI II Mil K I'Kl SS

n isnixaTOh

I ol 'i,i- itau « hi, .mil,!
■•l in ziu.'i. tin N ..r (in-

lata of

&S peer*, with mi In, I. x mi, I ,» lam '"'I' ihOWll

i r rtporu kiii
following anbjeeu ere ,iu
I granite i ,,. and

kilns, basalt quarrlea, sand ■

iry, metal rnlalni ud mineral staters riw
• ml 1911 vai .1

1111 1911

Copper f 179.191 t

Gold R47.677

38,188

SlK.T

Total metallic $ I.1S0 II I I 1,0
Non metallic products:

f 8,888.870 l 1,861,768

Coal 8.042,871 8.174.170

Oraalti ..... 809.801 1,84

Lima 884.888 888,933

80,870 :i2.47s

Mineral » ,t. rs 14,654

Portland cemenl 8.013.78E 1.496.807

Sun, l and gravel 819.760

Sandstone 344.47": 301,848

Total non metallic ...$14,216,236 $14,775,954

Grand total fl6.336.450 J15.N30.797

Some excellent brick is made In this state, some of which
Is used for Btreel paving. The da] Industry is widespread in
!>• counties.

The output of the cold, silver, copper, and lead mines in
Washington in 1918, according t" C N Gerry, of the U. S.
Geological Survey, was valued at $1,053,135. compared with
81,120,214 in 1918. The decrease was due to lower metal prices
and a smaller production of silver and copper. The gold out-
pul lias a value of $696,275; the production of silver decreased
from 413,588 nz in 1912 to 331.239 or. in 1913. The copper
production likewise decreased from 1,086.010 lb. in 1912 to
964,081 Hi. in 1913. Lead production increased from U'7.::v7
lb. in 1912 i" 202,487 lb. in 1918. There were 57 productive
properties, "I which 12 were placer and 45 lode minis

Mining and industrial companies which are now operating
in Washington, Idaho, and British Columbia, and tributary
to Spokane, paid $565,386 In dividends during the first 10 days
hi July. Of this. $309,800 was paid by the Washington Water
Power Co.. which supplies power to mines in the Coeur
d'Alenes; $123,836 by the Stewart Mining Co.; $81,750 by the

Bunker Hill & Sullivan company; and $5". by the Standard

Silver-Lead company.

Flint! Cm \ ii
After an Idleness of nearly two years, mostly due to litiga-
tion, the Quilp mine, one of the oldest developed properties in
Republic will resume operations. The decision to reopen the
mine was made at a meeting of the directors this week in the
offices ol W. I. C. Wakefield of Spokane, vice-president of the

Quilp Gold Mining Company. Attempts to consolidate the

San Poil Mining Co. and the Republic Mines Corporation.
which is in the hands of a receiver, are being opposed by
creditors of the latter Company.

STKVKNs CiiI'STV

The raise between the United Copper lower adit ami the
600-ft. level, a distance of 465 ft. on the incline, wis completed
in 60 days, and was in ore all the way. Ore is to be stoped
from the 1000 and 600-ft levels.

I I Ml

blpmrati from If mines m Tlntlt dai -

■ i dividend - nual to n

ii., i qnarterl] dividend ol lOi

pel anan i to fjOO, n -im

• i daj ti tin 10 "i it i-

Si m tin Cot Ml

k Una. in in,- general manager, W Laml ni

Dal) Judge mine in In good Bond l

ii to cut mi orebod) opi "'ii in thai polnl

The rich ahoots in the Dal] rein u tins irfaet

These shoots are In the form "t ch ye,' ami in

50 It vide, and I.", in SO II high nn tin- 1200-fl Ii

si.i|m- baa yielded ore foi ■ length ol 888 ft., 80 ft high and

•tide, all null ore, Containing bad anil /.in. I ..

im-iii t <>i iii - about 1000 ft per month. Tin- Mines Operating

I'n. lias nipped aliimi 80,000 01, silver, being pan ..I ii,,
clean-up. Formerly precipitate was shipped, bul i n
finery has been Installed recently at the prapert]

COSTA RICA
iln- Abangarei Gold Fields Co, produced bullion worth $43,-
386 from 6588 ions of ore in April, at a loss of $:{s.".T. Tin-

or the Brsi i - months of 1914 was $64,706, Owing to

ties experienced ol late In getting sufficient profitable
run the plain, ii has been deemed advisable La
• -.ii rations for the present and devote the attention ol i in-
staff to underground development

KOREA

The Seoul Mining Co.. operating the Span Concession In
Whang Hal province, reports the following results for June,
1914:

Stamps working in

Time, days 27.83

i Ire crushed, tons 5,960

Total recovery $60,662

Operating expenses _■ —

Net earnings $35,562

VEXICO

Oil I II I All t A

The American Smelting & Refining Co. has decided to re-
sume operation at ibe Chihuahua smelter, one of the largest
of the Company's plants in northern Mexico. The Company's
employees have been ordered to proceed to Chihuahua and ii
is expected that early in .Inly Ibe plant will lie In full opera-
tion. It is also intended to blow-in the Monterey plant In
Nui-va I. eon. and then the Velardena plant in Ooahnila.

SONORA

During the last week of June, nimble started anions em-
ployees at the Mines Company of America's La Colorado mine,
near Hermosillo. who are dissatisfied with conditions, prob-
ably more politically than with the Company. Tin- trouble
spread to Cananea. more in the nature of a sympathetic strike
which started on July 2. There is no dispute with the Greene
Cananea company. Demands of the strikers are as follows;
An increase in wages of 25':; ; a decrease in the price of goods
at the Company store of 25',: abolishment of the new labor
bureau; some changes in the management of the Company
hospital; and that wages in future be paid weekly. George
Kingdon, superintendent at Cananea. arrived at Douglas,
Arizona, on July 2. and consulted with .lames Douglas, the
gi ii- ral managi r. The position was regarded as serious as
mill and smeltermen left their work, but 2000 returned later
on. There are 200 troops at Cananea to keep order.

MINING AND SCIENTIFIC PRESS

Julv 11. 1!M4

I. D. Ikmng has gone to Butte.

John \V. Finch was in Salt Lake City recently.

C. P. Pi isrin sailed from Seattle for Japan on June 27.

Wii.iii; it. Hkndebson Si ott has gone to England for a
vacation.

R. H. RICHARDS was at lshpeniing lasl week and has gone
tj Houghton.

Si m m ii 8. SMITH came down to Seattle from Nome last
week and has gone north to Juneau.

('. Ii. Kiinis. has been made vice-president and general
manager for the Dome Mines Company.

Hi nun, .ton Adams has gone to Chile. S. A., where his ad-
dress is in care W. R. Grace & Co., Iquique, Chile.

Morion Webbkb has gone to Idaho to make a preliminary
examination of a placer deposit for New York clients.

W. J. Pi miimi is in Denver, Colorado, where his address
will lie temporarily in care of Dorr Cyanide Machinery Co..
Denver.

H. L. Smyth is to be the head of the combined school of
mines of Harvard University and Massachusetts Institute of
Technology.

Svnii el Newhouse, formerly a prominent mining operator
Of I'lah. but now a resident of New York City, is in Salt
Lake City on a visit.

J. Vakophem, of Brussels, president of the Algunican De-
velopment Co.. owner of the Jualin mine at Jualin. north of
Juneau, inspected the property recently.

W. D. B. Mutter. Jr., recently manager for the Canada Iron
Mines. Ltd., of Trenton, Ontario, was appointed on May 1
as manager lor the Benson Mines Co. at Benson Mines, New
York.

Hi mii Tschktschott, professor of ore dressing and metal-
lie Mining Institute of St. Petersburg, is In the
Juneau district, Alaska, studying the methods or ore treat-

.1. A. Sim. master, general superintendent for the New
Zinc Co., of Palmerion. Pennsylvania, is making a
tour "i Europe visiting Bmelters and other departments of
the zinc industry.

formerly underground superintendent for the
Aurora Consolidated Mines Co.. bus accepted a iiosition as
superintendent of the Nan Aog mine, twelve miles from
Hailey, Idaho.

E. E. Puke, who has been superintending operations at
the Lower Mammoth mine of the Tintic district. I'tah, dur-
isl two years, left recently for Casper. Wyoming,
where he will fake charge of the Pine Dome Oil Co.'s prop-
erty. William Komi: will succeed Mr. Price.

H. G. Vol \,; has resigned as manager for the Trethewey
Silver-Cobalt Mine. Ltd.. and has accepted the position of con-
sulting engineer to the Algunican Development Co. of the
Juneau district. Alaska, and general manager for its sub-
sidiary companies. Mr. Young will leave Cobalt about Au-
gust 1.

also held other Important positions and his loss will be d
ted by bis many friends in the mining profession.

Edward ('. Limbai ii. superintendent of the American Girl
mines at Ogilby, California, at 1 p. m. on June 15, slipped and
fell upon the drive-belt of one of the Hardinge mills, passing
around the pully on the countershaft. He died two hours
later. Mr. Limbic!) was a graduate of the Colorado School
oi Min.s iii the class of 'Ha. and followed the profession for
a number or years in Colorado and Montana and later in
Loomis. Washington, where bis family are living. He was a
man of charming personality, always well liked by his asso-
ciates in school and in the field, honest, upright, and fair. He
has improved the practice at the American Girl considerably
in the short time he was there, and was a valued member of
the profession.

Ah i ii i B Ai siiv chief testing engineer at the Tooele smelter
of the International S. & R. Co., was severely burned June 29
while testing an oil burner for the assay furnaces. He was
using a steel barrel containing fuel oil under high pressure.
The head of the barrel blew out, covering him with oil which
immediately took tire from a nearby flame. His injuries were
so severe that he died a few hours later. He was a son of
L. S. Austin, the well known metallurgist, and was himself
well started on a promising career in metallurgy. After
graduating Irom the Colorado School and the Michigan Col-
lege of Mines he entered the service of the Anaconda Copper
M. Co. in 1906, from which he was transferred to the Inter-
national in 1911.

Frank Rodbins, who for the past fifteen years had made
his home in Los Angeles, died on June 21 of pneumonia, after
a brlel illness. In the early days ef the Eureka district, Mr.
Robbins was superintendent of the Eureka Consolidated.
Later he was manager for mines at Valle de los Angeles in
Honduras: MacKenzie and Mann at Greenwood. British
Columbia: and also ot the Elkborn at Leadville. Colorado. He

JULY
Northern California and Southern Oregon Mining Con-
gress, Ashland, Oregon 9-10

AUGUST
American Institute of Mining Engineers, Salt Lake City 10-14

British Association, Adelaide, South Australia 8

Canadian Mining Institute, Rocky Mountain branch,

Banff.
Lake Superior Mining Institute, lshpeniing. Michigan. .

::i to Sept. 3
SEPTEMBER

American Chemical Society, Montreal 15-18

American Institute of Electrical Engineers not fixed

Colorado Scientific Society, Denver 3

Illuminating Engineering Society. Cleveland 21-25

OCTOBER

American Institute of Electrical Engineers 9

American Iron and Steel Institute 23-24

Colorado Scientific Society, Denver

NOVEMBER

American Institute of Electrical Engineers 13

Colorado Scientific Society, Denver 7

DECEMBER

American Institute of Electrical Engineers 11

American Museum of Safety 11-20

American Society of Mechanical Engineers 7-8

The University OF Minnesota SCHOOL OF Minks, at Minnea-
polis, begins the first semester on September 1, with 58 in-
structors in the faculty. There are three regular courses of
study, namely, mining engineering, mining engineering spe
cializing in geology, and metallurgy, leading to the degree of
engineer of mines, engineer of mines in geology, and metal-
lurgical engineer, respectively. The bulletin of June 1914 de-
scribes the courses and other general information.

Ill) II

\II\IV. II Mil l< I'KI SS

THE MARKET PLAC!

- t n PRAKCISCO STOCK! \mi BOHOI

I ulUtrst
Nntomn

rt. i cmrnl ita

I0U

BanlaCnn Onomlli

10
BTX)

Union mi

'KS

89,

tafc

l.Nted.

Hid

Ask

—

Weal coani. pM .

—

H2|

1 muted.

—

8I|

Noble Electric Hteel....

00c

Pac. Port. Cement . ..

til

Riverside lemenl

—

Santa Crux Cement .....

—

Stand. Port. Cement ...

LUtcd. HI t

Aaurutr.1 OH

Natomaa ton

In.
General I'rtroleum Ss. 38

Listed. Hid

alalia niilil "ii

Associated < Ml

Da Pint, pill

Giant

Pac. tat. Borax, com

Strrllnc "A D —

.... at

m \ tin nrtM k>

I By courtesy of San Francisco Stock Exchange.)
July 9.

Atlanta I It

Belcher

Belmont , 6.67

Con. Vlrclnla 17

Florence -T»

Ooidn..; .i • no .... i.«

Uoldfleldor.. 08

Halifax

Jim Ballet IJDG

Jumbo Extension .

UacNamara 01

Mexican
Mldwai

Ml/pah Extension 21

Montana-Tonopah

Nevada llllls

-ar

Ophlr

Pittsburg silver Peak .

Hound Mountain

sierra Nevada

Tonopah Extension ....

Tonopah Merger

Tonopah of Nevada ....

Union

Victor

..i

Yellow Jacket

.1 -v.

.. .32
.26
.. .IS
M
.. .37
.. .11
.. 2.46

.. .10

.10

.. ■■<■-•
.. -I"

I Mil HUM t -TIM K*

(Latest Quotations.)
Bid. Ask

onaut

Brunswick Con.
Bunker Hill
Centra] Eureka.

1.60
1.90
0.1!

*T.50

0.13

Bid.

iv 18.00

Mountain King

South Eureka .... 1.40

COPPER SHAKES — BOSTON

(By courtesy of J. C Wilson, Mills Building.)
July 9.

Bid Ask

- 90) 10)

Ariz. Commercial 4i ■>

Butte A Superior 30] 37

Calumet A Arizona 8t| Si

Calumet* Hecla too 410

Copper Range 35| 36

East Butte '.'i 10

Franklin t I)

Granby 79 80

Greene Cananea 28J 281

Isle Royale 20| 21

Mass Copper Ii 6

Mohawk 11 151

Bid

Nevada Con I 13]

North Butte 24]

Old Dominion llii

Osceola 77|

llulncy 57

shannon 6

Superior & Boston Ii

Tamarack :i

IT s. Smelting, com 33]

Utah Con 10

Verde 82

Winona

Wolverine 88)

NEW YORK STOCK EXCHANGE!

(By courtesy of J. C. Wilson, Mills Building.)
July 9.

Bid Ask

Amalgamated 8 70) 70]

Anaconda 31]

A. S. «. R., com 05) 66

Calif. Pet., com 19j 20

Chlno 40] 40j

Guggenheim Ex 64] 55]

Inspiration 181 18j

Mexican Pet., com fill 62

Fid

..» 22;

. 13)

Miami

Nevada Con

Quicksilver, com 1

Ray Con 2I|

Tenn. Copper 32]

U. S. Steel, pfd IMS

u. s. steel, com ill]

Utah Copper 57]

Ask.
0.50

Ask
14
25
5T|

7:i

:n;

"i
35

Ask
22]
14
2

21]
33

109)
01]
t.7]

M tt rORK i l Mil ill in uim\.

■

1 '.

Del? %

Kii.t National..

II" g< I

Iron Bloeaoni . .
i.. Ron

LONDON 1(1 OTATIOlfl
through, tbe courteay of Blolllater. Ly.>n & Pi
New Fork.)

July ».

Jul

Ask.

Bid

lie

Ulnea • '■• Am.

Bullion

rnit.-ii i'.-i

Yukon Oold

I s .1.

Alaska Mexican i lo o

Alaska Treadwell 7 3

Alaska United :i n n

Arl/oua „_,. l Hi :i

<aiup Bird 7

Cobalt Townsllc 1 12 11

El uro o 13 9

Ksperanza 11

Granville 8 9

Kern River imiiei.is o 8

Mexloan Eagle, com

Mexico Mines I I

Messina I

' Irot Hie

Paclllciillflelds

KloTlnto

Santa Gertrudls

Tanganyika 3

Tomboy l

s. d.

ii
3
I

Moftal Prices

LOCAL METAL PRICES

San Francisco, Juli 9.

Antimony 9 — y s 4 ,.

Electrolytic copper is -

Pig Lead 4.15— 5.10

Quicksilver (flask) s :; 7 . r. ■ >

Tin 39 — 10 %c

spelter 6V4— 6%C

Zinc dust, 100 kg. zlnc-llned cases. 7V4 t" Be. per pound.
I: \s| ■|.;n\ METAL >l UtKET
(By wire from New Sork.)

NEW YORK, July 9. — A large business Is being done in cop-
per In botli domestic and export trade, but local buyers' n -
qulrements are not well covered. The price has moved up
steadily all the week. Lead and spelter are quIeL Tin is
steady at 31.90 to 32c. and antimony Is dull at 7.12 to l26i
In London, copper Is steady at £62 6s.3d. to £62 12s.6d., tin
Btcady at £111 16b. to £146 5s., and bar silver steady at 25 % tl.
The American Smelting & Refining Co. Is having trouble in
starting up its Chihuahua plant.

SILVER

Below are given the average New York quotations In cents
per ounce, of line silver.

Date

July 2 56.62

3 16.62

i Holiday

.". Sunda

6 56 26

7 56 B7

Average week ending

i : ..',7.12

.June 3 60.62

" 10 56.48

- 17 56.56

" 21 S6.2I

July 1 56 58

8 56.42

Monthly averages.
1914.

57.58

July

57.68

Aug.

58.01

Sept.

ns.nj

Oct.

58 21

Nov.

56.43

Dec.

1913.
.58.70
.59.32

.60.53

, 6U.SS
.58.76
.57.73

1913.

Jan 33 01

Feb. 61.25

Men 57.87

Apr 59.20

Mav 60.21

June 59.03

QUICKSILVER

The primary market for quicksilver Is San Francisco. Cali-
fornia being tne largest producer. The price Is fixed In the
open market, and, as quoted weekly In this column, Is that at
which moderate quantities are sold. Buyers by the carload can
usually obtain a slight reduction, and those wanting but

MINING AND SCIENTIFIC PRESS

Julv 11. l!U4

or two mutt expect to pay a slightly higher price. Average
weekly and monthly quotations. In dollars per flask of 75 lb.,
are given below:

Week ending I Jan.- 25

June 11 38.50 July 2

Is " 9

Monthly averages.

1913. 1914.

Jen 39.37 39.25

K.I. 41.00 39.00

Mrh 40.20 39.00

Apr 41.00 38.90

Mav 40.25 39.00

June 41.00 38.60

1913.

Julv 41.00

Auk 40.50

Sept 39.70

Oct 39.37

Nov 39.40

Li. 4U.0IJ

1914.

Lead is quoted In cents per pound or dollars per hundred
New York delivery.

I N,I

. . . 3.90

Average
May 27...

" 10

•■ 17
„ L . (

Julv 1

week endlr

. . . 3.90

. 3.9(1

II.
Su

. 3.90

inn

1 28
4.33

Monthly

1914.
4.11
4 (12
3.94
: Bfl
3.90
3.90

Jan.
Feb.
Men.

_ r es.
July

Aug.

Sepl

Oct

1913.

4.:::.

1.60

1.70

. 4.87

. . 4.16

191 1.

Apr.
May

. 1.02

zivr
Zlnc Is quoted .'is spelter, standard Western brands, St.
delivery, In cents per pound.

Date.

. . . 1.76
... 1.76

July

I 7.-.

1.76
1.76

\1
June

Average week ending

1.113

4.90
1.89

4.85
4.85
1.76

t 7.".

Jan.
Feb.
Men.

A,ir.

May

June

1913

. ". 52
. :..on

Monthly averages.

191 I

i.l 4

5.12

4.98
4.91
4.81

1913.

July 5.11

Aug 5.51

S. pi

Oct 5.S2

Nov 5.09

Dei 5.07

TIN

NVw York prices control in the American market for tin. since
the metal Is almost entirely Imported. San Francisco quotations
average about 5c. per lb. higher. Below are given average
monthly New York quotations. In cents per pound:
Monthly averages.

1918. 1914.

Jan 50.46 37. S5

Feb 19.07 39.76

Mch 46.96 88.10

Apr 49.00 36.10

Mav 49.10 33.29

June 45.10 30.72

1913.

Julv 10.70

Aug 11.76

Sept 12 15

Oct Id 61

Nov 39.77

37 7,7

1914.

COPPER

Quotations on copper as published In this - present

average wholesale transactions on the New York market and
refer to electrolytic copper. Lake copper commands normally
1-5 to l-4c. per lb. more. Prices are In cents per pound.

Date. Average week ending

May 27 18.98

June 3 13.86

l" 13.7s

" 17 13.65

July 2 18.85

13.35

i Holiday
5 Sunday

• ; 13.40

7 i:'..5n July

S 13.60

Monthly avi

1 13.28

s 13.4 I

1913. 1914.

Jan 16.54 14.21

Feb 14.93 14.46

Mell 14.72 14.11

Apr 15.22 14.19

May 15.42 13.97

June 14.71 13.60

1913

Julv 14.21

Aug 15.42

Sepl 16.23

Oct 16.31

Nov 15.08

1 Dec 11.27,

ASSOCIATION REPORT

COPPER PROIUCERS

The Coppei Producers' Association statement tor .lone shows

a decrease In production and increase in stocks on hand. The

details are as follows:

Pounds.

stocks of marketable copper of all kinds on hand at

all points in the 1'nit. .I Stat - 1. 1911 si. 212. 611

Production of marketable copper in the United States
from all domestic and foreign sources during

.In io- 141.31.1.

15.927,000

Deliveries for export June 73,350,477

Stock of marketable copper of all kinds on hand and

at (til points in (he I'. 8., July 1 :>7. 1

Recent changes in surplus have been as follows, in pounds!

690.830

77::..

Increase.

June 1913

July

August

September

October

November 15.863.U47

December ..%. 43.509,438

January 1914

February

March

April 5,7.

May 14.005,640

.lime 12,768,022

Decrease.

1.142.1S2
8.924.833

i:;.7i;^.7,:!;i

COAL \\i> COKE I'lllllll t TIO\
The following data, covering 1913. is from the U. S. Geolog-
ical Survej :

Miners Coal Coke

em- mined. made,

ployed, tons. Value. tons. Value.

Alabama $ 3,323.664 $ 9,627,170

Arkansas 4,660 2,234,107 3,582,789

Illinois 1,859.553 8.:,

Indiana 2,727,026 13,182,136

Iowa 15.679 7,490.641 13.431.061

Kansas 12,479 7,202,210 12.036,292

North Dakota 495.320 750.652

Tennessee 11,263 6,903,784 7..ss:;.7l4

Texas 2.429.144 4,288,920

Virginia 9.162 8,S28,0fis 8,952,653

Each of these states produced more coal than in 1912. Alaba-
ma coke output was 348,175 tons over the previous year, and
this increase was from by-product ovens. These yielded 2890
Ions per oven, against 212 tons from the beehive type. Coke
made in Illinois and Indiana comes from West Virginia mines.
Iowa is primarily an agricultural state, and excepting the
coal used by railroads, the sale depends on rural communi-
ties. Kansas operators had little to complain of in 1913. The
North Dakota output is all lignite. The year was satisfactory
in Tennessee. Texas produces lignite and bituminous coal
in equal quantities.

Pbodcctios of abrasive garnet in the Tinted States in 1913
amounted to 5308 short tons, valued at $183,422, according to
i he U. S. Geological Survey. This was the largest in the his-
tory of the industry, and an increase of 361 tons in quantity
and of $20,185 in value, compared with the production for
1912. The industry was confined to three states, New Hamp-
shire, New York, and North Carolina.

Tin STATISTICS for June show the following movements, ac-
cording to L. Vogelstein & Co. of New York: Shipments of
standard metal to America. England, and Europe, 7N94 tons;
deliveries, 8995 tons: visible stocks. 18,562 ions; average price.
30.60c. per lb. Figures for May were 11. 744.887. and 19.668
tons, and 33.25c respectively.

Billion received at the San Francisco mint during June
was as follows: Gold. 143,156 oz. worth $2,959,303; and silver,
21,632 oz. worth $12,114. The coinage executed was $3,000,000
in double eagles, and $21,500 in one-cent pieces. Coin, bullion,
etc., on hand at the end of June amounted to $246,370,870.83.

Tin: Lake Sufebiob Minim. Institute will hold its nine-
teenth annual meeting at Ishpeming and Detroit at the end
of August and beginning of September. A first-aid demonstra-
tion will be held, and the mines visited at ishpeming.

Artificial graphite manufactured at Niagara Falls in 1913
was valued at $973,397.

II. I9M

\II\1V. \M> S< II Mil l> I'KI SS

-1

COMPANY REPORTS

IM OMPANT

•i annual rrpoit Ol Ihl. Coni|*ny for tbf II ■
■larch 31.

' lll'llUCtlni .!,.,u-lloli ,,! i

»r»l».' and all other charters, the Ml profits amounted i., |i.
Dividend ,nd ..minion stock! lo

Id, and Hi. turn

10.441 nr.- currsn ca * on

•>»»•) ! luirltik- Hi,- >.ar. Ih. u,

eondlUs Ida in toe hmI Industry, coupled with i...,. i

r tin- oatpal of eappcr, resulted in the earn

UUUI f.ir lllf |U. M;„u IN,-

In lli. Mueller :iti.l 11
Men will result In a greater output at lowi |

will probably be felt during
year.

HAMPDEN CLONCURR1 COPPER minks. Ltd.

The r,-i>ort of tills Queensland Companj covers lite half-

nded February U, 1914. In the six mines, ■ total ol

::i*7 M. of developmi nt wa» done. The Duchess shaft was

sunk to 727 ft. Three winzes, sunk below the 560-ft level,

ore al depths of 9" to 126 ft Reserve*

In this mine are estimated al 67,000 tons. At 860 ft. In the

Hampden, a sulphide orebody has been opened for 220 ft. It

from 4 to 9 ft. wide, averaging 10$ copper. This ore

contains less than Jo , jllica. No. 1 shaft was sunk to 523 ft.

A low-grade shoot was cut al 190 ft . and driving at .". t.

has open.-. I or.- assaying 10.191 silica. 61.2$ iron oxide, 39.1%
sulphur, and :: v , copper. Reserves total 67,000 tons. Seven

• i al 200 ft In the Trekelano mine. Re-
in all mines are estimated as 211. ions averaging

about lo-. copper. Ore smelted was 23,106 ion- producing
.60 lb. copper, 1»23 oz. gold, and 26,172 oz. silver. The
te was E222.158; profit £66,847; and dividend, £35.000.

l.lt'KV TIGER-COMBINATION GOLD MINING COMPANY

This Company has its general office in Kansas City,
Missouri, and controls the TigTe Mining Co., which operates
mines and mills at El Tlgre, District of Moctezuma, Sonora.
M.xi.o. The i.-port covers the calendar year 1913. The re-
Iiorts of the consulting engineer, James W. Malcolmson, and
general manager, L. R. Budrow, contain the following infor-
mation:

Development totaled 49S4 ft., of which 2400 ft. was diamond-
drilling, the latter cutting the Kelley vein on No. 3 level 150
ft. east of the main vein. No. 2 level cut this shoot, which
has developed about :!00 ft. of a good grade of ore. Cross-cuts
w. re drivt n on No. I. ::. and 3% levels to cut the vein. No. 3
reached it. and 89 it. of driving was done in ore. The other
cross-cuts have since cut the vein. Stoping was started on
this vein in February. 1914. Work on the main Tigre vein
totaled 2291 ft., and on the Sooy vein, 39 ft. Development
cost 59.2c. per ton. There was 56.0S1 tons of ore broken, of
9.2c. per ton. Concentrate produced was 2358 tons, assaying.
0.493 oz. gold, 285 oz. silver, 2.32% copper, and 12.05% lead.
Broken ore in stopes amounts to 28,907 tons. Mining cost
$2.80 per ton.

The mills crushed 68,528 tons of ore, and the cyanide plant
treated 64.757 tons of current and 21.77S tons of dump tail-
ing, at a cost of $3.99 per ton. Ore transport to the mills cost
9.2c. per ton. Concentrate produced was 23S8 tons assaying,

I mill a «.. i ih t/||| |..

■

ions was '

total avallablt wi I

nut ol Ibis, II dividends were paid totaling ti 61 1 the

. sab on hand ." the end ol the | ■

OROYA links. LIMITED

AS will be well from III. ... lompan. In,

pan] controls a lugs area al Kalgoorlla, Western Australia,

on which it Is doing n considerable ■ unl ..t »,,iu, ,,

trihincrs or rho mostlj worked In the oi

sport coven the year ended December 21, 1912 The

'it. ml. nt Is P, FltSgsrald, and general man..
Morelng & Company

Development In the various claims totaled 6960 ft, »Ibo
m cutting an. i surface trenching. The expendltui

. l \l \l HAP SHOWING oliov \ LINKS PROPERTY .\ M' "I n I H

hi ires \ r k iLoooai rs.

El 1,626, equal to 50c. per ton milled. A good deal of work
was done at and above 750 ft. in the Eclipse mine; the Croesus
Proprietary shaft was sunk from 750 to 935 ft. (now 946 ft),
(he lode being cut at 932 ft.: work was confined mainly to
the oxidized portion of the Brownhill west lode; and in the
Oroya north block, the Magazine lode worked by trlbutera
was followed down to the boundary in rich ore. but above
110 ft. there was nothing of importance disclosed. Ore re-
serves are estimated at 146.775 tons worth $5.82 per ton. an
Increase of 32,460 tons and 16c. per ton In value. Trlbutera
on nine claims mined 4183 tons of ore yielding £9589. on
which the royalty was £1831. Results were as follows:
Ore extracted from five mines (Eclipse and Oroya

North mainly), tons 139,130

Gold from 50-8tamp mill, slime and concentrate plant,

etc £151,819

Net profit in Western Australia 15.899

Forward to 1914, including balance from 1912 18.180

Cash at bankers, in hand, and on loan 61,916

Total cost per ton $3.86

During the first quarter of 1914, 35,630 tons of on- was
treated at a profit of £4826.

INSPIRATION CONSOLIDATED COPPER COMPANY

The Inspiration property in Gila county. Arizona, is the
scene of great activity. Aside from mine development, a
mine plant, a 10,000-ton concentrating plant, and the testing of
the flotation process at the rate of 600 tons per day is
under way. The report of the general manager. C. E.
Mills, covers the year 1913. The property now total-
acres. Underground preparation for ore extraction contimud.

K'J

MINING AND SCIENTIFIC PRESS

July 11, 1!H4

i. niii totaled ::t.7i'.ii it., making a toiai or 110,609 it.

in date. There »as hoisted 47,200 tons of 1.86% copper ore,

tons "I waste. Ore on hand in stockpiles amount-
ed to 196,000 tons, averaging 1.79%, al the end of the yea*.

In the Live Oak claims 17 holes were drilled an average depth
of :ll ft., and 6,858,000 tons of carbonate and sulphide ores,
assaying from 1.38 to 1.45%, was developed. Churn-drilling
■ en very satisfactory. Reserves are as follows:

Copper
Class of ore. Tons. Percent.

Sulphide 45,000,000 2.00

Low sulphide 2s. 322.000 1.26

Oxidized 12.445.000 1.34

Mixed carbonate and sulphide 3.876.000 1.21

Total 89.643.000 1.64

Mining operations will probably he confined for many years
to the higher-grade ore,

Surface equipment at Inspiration for a capacity of 10.000
tons per day is as follows: Steam power-plant of three 6000-
kw. generators, head-frames for two main shafts and receiv-
ing bin of 2000-ton capacity, two electric hoists of the Ilgner
system, air-compressors to supply 11,000 cu. ft. per minute
for mine drills, high-pressure compressor for underground
locomotives, coarse crushing plant with four No. 8 gyratory
crushers and eight 48-in. disc grinders, ore storage bins on
railroad at mine to hold 25.000 tons, ore-bins at mill to hold

!_', I tons, concentrating plant 1U miles from mine, water

supply plant of 5.000. 000 gal. daily capacity, and 7'_. miles of
.M'd-gage railroad to the miue, mill, smelter, and con-
necting railroad. The plant should start at the end of 1914.

To provide the funds necessary for extensions to original
plans, etc., five-year 6 r 7 convertible debenture bonds, amount-
ing to $4,500,000 were authorized. Assets totaled $20,586,996,
Including $1,781,146 cash. Liabilities include accounts paya-
ble. $127,836; and 10-year 6% convertible bonds. $6,000,000.

.Xim'N'T LTELL MINING & RAILWAY COMPANY, LTD.

The report of this Tasmanian company covers the half-year
ended March 81, 1914, and is replete with data on mining.
smelting, and new power scheme: with photographs, plans
of the district, and of the North Lyell mine. The combined
reports of the general manager, Robert C. Sticht : engineer
in charge of mines. R. M. Murray; local superintendent. Basil
Sawyer: metallurgist, R. P. Roberts: chief mechanical
engineer, G. W. Wright; superintending engineer of rail-
ways. E. Carus Driffield; and engineer for supplies, Huntley
J. Clarke, contain the following information: At the Ml.
Lyell mine, overburden was removed from benches No. 2a, 3a,
3b, 4c, and 5. Ore was broken from No. 4 bench. Only 19,934
tons was taken from the open-cut. No. 6. 7, and S levels un-
derground were actively worked producing SS.507 tons. Dia-
mond-drilling 545 ft. yielded promising results. This mine
supplied ""il tons of pyrite (45'; sulphur) for the Com-
chemical works in Australia. Ore reserves in the
parent mine amount to 2. 097,072 tons averaging 0.531% cop-
!" i 1 96 oz. silver, and 0.0275 oz. gold.

Prospecting was done in the south Mt. Lyell mine.

The north Mt. Lyell mine produced 60,461 tons of ore,

and 120 tons of copper precipitate from underground water.

as cut at the 1100-ft, level for a new hoist winze

i pen the orebodies below this level. Work was

also started to connect the 200, 700. and 850-ft. levels with
the Crown Lyell shaft. Ore reserves in the North Mt. Lyell
are 1,025,651 Ions averaging 6% copper. 1.33 oz. silver, and
oz. gold.

Prospecting was done on five levels in the Lyell Comstock
mine. Development in all mines totaled 4531 ft., including 1836
ft. of drilling. The blast-furnaces treated a total of 163,513

tons of ore. fluxes, etc.. Mt. Lyell supplying the has;.
North Mt. Lyell the silirious ore. The average mixture
smelted contained 2.49', (upper. 1.82 oz. silver, and tf.028 oz.
gold. From 9360 tons of matte, there was produced 3433
nuts ot blister copper, assaying 9S.7SV, copper. 67. 5 oz. silver.
and 1.312 oz. gold per ton, equal to 3391 tons of co
231,740 oz. silver, and 4 ."">"> 4 oz. gold. Costs were as follows:
Mining. $2.43: smelting. $2.13; and converting. 30c, a total
of $4. Sti per ton. against $5.32 in the previous term.

After deducting all charges, the net profit was $2!'
With the balance from the previous half-year, the amount
available was $2.9sO.OOo, out of which $3S5.0nu was paid as
dividend No. 17 of 30c. per share. On June 15, 1914. No.

PLAN OF Ml. Ill I I PBOPEBTY AMI IIISTUIt it. thi: m:w PciWKIi

PKOJKCT is sirr.vrtn A rav milks nokth.

18 was paid, amounting to $300,000, or 24c. per share. Assets
show a surplus of $1,680,000 over liabilities.

Rainfall at various points in the district was from 31.18 to
88.28 in. on 87 to 119 days. Good progress is being made
with the Lake Margaret hydro-electric scheme, the plant
being well under way. and all transmission poles erected.
Power should be available in September, 1914.

An experimental plant has been erected at the smelter
to test ore by flotation methods. Trials on North Mt. Lyell
ore have been made, and those on Lyell Comstock were
satisfactory.

The three chemical and superphosphate plants ill Australia
operated it: the usual satisfactory manner. The South
Australia:! interests were amalgamated with those of the
Wallaroo Phosphate Co.. Ltd., and a new company registered.
The railways were kept in good order, the revenue being
$97,000. and expenditure $77,000.

The Company's metal production since August. 1903, is:
Copper. 127,498 tons: silver. 10.626,593 oz.: and gold. 321. 1»4
ounces.

MI\1M. WD SCIEN1 II I'

RECENT PATENTS

RECENT PUBLHCATHONS

1 with mu electric arc

- lor iii.ltlme "' '" "I inil.il from on-

■

i ,1... ..I in, Hint .li.iiiili.r

hanslnn »hn(t uInii.- Hi.- chamber, provided wild

•h rhnrKliu; »|HTUir.-i<. sutd i|«r

normal!) closed bj the i-hnrKiiiK material, a Hue

the melting chamber through the. material being

.^ through iiiu shaft, and a pin

-; into the melting chamber rob-

slantiall) a* il> .•>. :rll>< J.

,i camotlte ami
mil similar vaiuiiinim ami uranium mim-mi*. Herbert

• hlmgo. Illinois.

and allied ores, i oflslatlng

itlng the or,' In presence of sulphuric acid until a mass

Is obtained which Is solid when cold anil which contains sub-

illy all of 111,- vanadium nn,l uranium In a readily Bolu-

ndltlon. extracting the solulile constituents from the

treating the solution thus obtained to recover the

• therefrom, and treating the residue for the concen-

■I 01 lis radium content.

■ 1<3— Ore concentrator. John L. Slgnorette, Los An

California.

In an ore concentrator, the combination with a base, of

;;,!>orls carried by said base, a tray mounted on

a longitudinally extending bumper bar connected

with the bottom of the tray, a standard mounted on the base

and of the tray, resilient means for reclpro-

the i ray. means carried by the standards adapted to

be engaged by the bumper bar during the reciprocation of

the tray to jar such tray anil Independent adjusting devices

for the resilient means and last-mentioned means whereby

the shock at either end of the reciprocation may be regit-

1.217; 1,100.218; 1,100,219; 1,100,220; 1,100,221; 1,100,-
1 1,100,223 have been granted to Charles Butters. Oak-
land. California, covering apparatus for fllteritiK slime. This
Includes, respectively: (Da suction filter-leaf having means

tnlttlng water thereinto to dislodge a cake therefrom,
and a relief valve In communication with the upper portion
i i relieve said leaf of air as watei is admitted there-

to; i :' i in a suction niter-leaf, the combination of a frame
filter media carried thereby and a water-supply pipe for cake-

-iug purposes connected to said leaf, said pipe having
an opening to atmosphere near its point of attachment to the
leaf: i :; i a Biter-leal having means for equalizing the exter-
nal and Internal water pressure thereon while said leaf is
submerged; (li a suction filter-leaf having a manually
d valve connected with a submerged portion thereof;
("n the step in the process of treating slime which consists
in running water through the filtering means while sub-
laid means in the slime; [61 a filter-leaf having a
header, a frame, filter media mounted on said frame and sup-
ported by said header, and a perforated pipe mounted on
said leaf above said header: and (Ti the process of dislodg-

ime cakes from filter-cloths, which consists In saturat-
ing without pressure substantially the entire surface of the
cloth while the cake is thereon. Patent 1,100,267, consisting
of a filter medium for a suction filter-leaf open across the
bottom was granted to William Anna Stedman, of Wonder.
Nevada, assignor to the Butters Patent Vacuum l-'ilter Co..
a corporation of Nevada.

B] i r

id Mac lonal at Ulnerl
17, ill . mu ode Chid

ami 1914

OaAPiin M n- ran mi Boi n •-. t; pgog

iim- in w. s Tangier Smith. Reprlni from I
P 58 Illustrated.

Till MiMium ScaiI>T 01 S,,i i n, v. Y.,m; Sim.

- lasoou By Charles HHnhard

From Inn/iN of the \,. w y or k Ai ad-my of BotencM

IOLKUU INDUSTRY ,,l Cm iiiihmi. By j. II Q, Wolf It.-
print >'i address given April IT. 1914, before the San Francisco
chapter of the American Society of Civil Engineers P, 17

Maps and charts.

QsOLOOl 01 in> Si i mum, U,,, k ami (iiiii\m Hum Imhii
Rkskbvations, Niiiiiii ami Sui in iiAKi.ii. By w. it. Oalvert,
\ I. Meekly, v. 11. Harnett, and M. A. Pishel. Bulletin ',?',.
P. 49. 111., maps.

Mini km. Id s,.i iters hi WASHINGTON, with statistics for 1912.
Liy Henry l.andes. Bulletin 11. P. G5. Maps. Washington
igical Survey. Olympla. 1914. This will be reviewed In
her issue of this journal.

Mining Advance Into iiif. Inland Emi-ike. A comparative
study of the beginnings of the mining Industry In Idaho and
Montana, eastern Washington and Oregon, and the southern
interior of Brilish Columbia; and of Institutions and laws
based upon that industry. By William J. Trimble. A thesis
submitted for the degree of doctor of philosophy at the Uni-
i ;sity of Wisconsin. P. 254. Map. Madison, Wisconsin.
Price, 40 cents.

Coal, On.. C..\s. Limestone, and Iron Oiie Map. Revised edi-
tion by the West Virginia Geological Survey, February 1, 1914.
It contains a thorough revision of the coal, oil, and gas develop-
ments, several anticlinals being added and others corrected
from later observations. The names and addresses of 918
coal companies operating in the state are given by counties,
as well as the locations of their mines. The names of many
new towns, post-offices, etc., are added, and the valuable iron
ore deposits of the state are also Indicated on this map, and
all the special features of previous editions corrected and
brought up to date, showing the approximate areas of the sev-
eral coal series, as well as the oil and gas pools. Scale 8 miles
to the inch. Price, enclosed In strong envelope and delivered
by mall. FiOc. each.

Kanawha Coi my. By Charles E. Krebs, D. D. Teets, Jr.,
W. Armstrong Price, and I. C White. West Virginia Geologi-
cal Survey publication. P. 679. 111., maps, 3S plates, index.
Morgantown, 1914. In addition to the description of the
Kanawha coal series and all the geologic features of the
county, tne geologic map gives the structural contours on the
Pittsburgh coal horizon north from the Kanawha ami 101k
rivers, and on the Kanawha Black Flint south and east of the
Elk and Kanawha rivers, as also t lie location of the anticlines
a id vniliiiis showing their relations to the several oil and
mils of the county. The soil map and report of the ex-
perts of the U. S. Department of Agriculture covering this
region of the state should prove of especial value to the agri-
cultural and horticultural Interests. Price, with ease of maps,
delivery charges paid by the survey. $2.

MINING AND SCIENTIFIC PRESS

.Ink 11. 1HU

A New Use for Belt Conveyors

Using a belt conveyor for the rapid transportation of wet
concrete is quite a new departure and especially so is the
elevation of such material on belt conveyors, owing to the
tendency of the water to separate out and run back. How-
ever, by speeding up the belt to over 400 ft. per minute this
tendency is overcome and the success of this method can be
appreciated through the fact that over 2000 cu. yd. of wet
concrete were thus conveyed to the forms in a working day
Of 10 hours in the construction of the Pacific Gas & Electric
Co. '8 dam at Lake Spauldlng.

The concrete is mixed in a house on the mountain side, not
shown in tl'e illustration, where five one-yard mixers of the
revolving drum type are kept in constant operation, which
discharge the mixed concrete directly upon the horizontal belt

fuel valve may be varied while the engine is iu operation:
starting valves are operated by air: a direct connected in-
jection air compressor forms an integral part of the engine:
and a continuous system of lubrication with a filter and
cooler in circuit is a part of the equipment. The engine is
adapted to all classes of fuel oil.

Autotraction Drill Rigs

The drilling of deep blast holes of relatively large diameti t
is coming to be more general practice in the conduct of all
large mining operations, in railroad work, quarries, and
all classes of large excavations. To meet the demand for
drill rigs to drill deep vertical blast holes the Sullivan Machin-
ery Company offers the autotraction drill. The purpose of
this machine has been to serve the public with a drill which

\ r— _. - -.

BEI CVEYORS HANOI. INC ii.m I:} It AT .IKK SPAfl.DINO RAM.

conveyor traveling at a speed of about 400 ft. per minute.
Tin's conveyor discharges into a gravity chute leading down
the hillside to the first elevating belt conveyor, which carries
it upward at an incline of 18° to a tower erected on the
dam, from which it is chuted down to another belt conveyor,
. ting at an incline of about 15° and again carried up
to the final gravity chute. The conveyors used in this in-
stallation were furnished by the Meese & Gottfried Company
of San Francisco, through whose courtesy the halftone is also
presented.

The Fti.TON Iron Works of St. Louis. Missouri, in Bulletin
A' describe the Fulton-Tosi oil engines, which are a high
compression Diesel type engine. This particular engine is
built in the vertical form and with two, three, and four
cylinders. It is claimed the engine may be started from cold
within one minute without any trouble or time consuming
preliminaries. The points of advantage claimed for this
particular engine are the open A' frame construction, pi r-
mitting easy access to main bearings; the cylinder is cast in
the form of a removable liner from hard iron; all valves are
in separate cages and in the cylinder head; liming as well as

will drill deep holes faster and at a less expenditure of labor
and power than the heavy tripod or cable drills, which are
the two methods in common use. Toward this end the Com-
pany has designed the autotraction drill which permits of
the length of run or feed of from 10 to 20 feet, thus obviating
the frequent stops necessary to insert longer steel in the well-
known tripod types. Another advantage claimed for this
drill for deep hole work is the ease and speed with which
the autotraction drill can be moved from a completed hole
to the site of a new one. The moving of a 4'j or 5-in. tripod
drill, as those with experience will appreciate, is a slow job
requiring several men. As compared with drills of the cable
or well-boring type, the autotraction machine, with its
reciprocating air or steam-driven piston is claimed to be a
much faster driller. These outfits consist of a vertical stand-
ard or carriage, carrying a rock-drill cylinder attached to a
heavy iron recoil block, which is suspended in guides, or ways.
by steel cable passing over a sheave and alternately paid out or
taken in, as needed, by a hoisting drum. The standard and
hoist are mounted on a wagon truck made of structural
steel. A 2-cylinder reversible engine provides power for the
hoist and for moving the outfit from place to place.

I- 1914

\II\IV. \M> S< II Mil l> 1-KI SS

MOST RECENT DEISTER DEVELOPMENTS

in Sand and Slime Tables

It wi

detai

11 interest YOU to learn
Is of Our Latest Success.

We will be glad
to furnish catalog
and data.

Also investigate
our classifier.

iv.wl ••

'itrnttir.

Manufactured and
Sold Only by

. M.i.

Deck Btmpti

Usu I

I-., i

X -III .1

i single

■in...!.

ipaiu'i

initur.

DEISTER MACHINE COMPANY

INC. JULY 1912
Home Office: Shoaff Bldg., Fort Wayne, Ind. London Office : Salisbury House, London Wall, E. C.

HARD WORK

is the kind of work you expect in Rock Drills. And you
demand of them the strength to stand up to it.

How to fulfill this demand — how to minimize hreakage to
the point of the greatest possible security — how to make
efficiency overcome the persistency of rising maintenance
costs. These are the questions which have found answer in

Cleveland "Neverleak" Couplings Are Absolut ly
Guaranteed Against Leakage.

The shock and strain thai machines of this type are called upon to undergo
in service requires that every possible part shall be marie of drop forged
steel, and that's the way we make them.

our petalog la a straightforward, "open-faced" compilation which you "ill approve.

The Cleveland Rock Drill Company

6410 Hawthorne Avenue, Cleveland, Ohio

Loa Angela. Cal.: Smith-Booth-Usher Company tehpemlng, Mich.: P.O. Boj

-.i ■ Lake City, Utah: Sail Lake Hardware Company Butte. Montana: Western Mining Supply

Sew York »h> : soi i.i.n-ii Street Spokane, Wash.: Pafrbanks-Moi -

Pacific Coast Agent : ' - E.Green, Care of The Emlgb-Wlnchell Hardware Co., Bacramei bo

Mining and Scientific Press

ESTABLISHED MAY 24. 1860

Vol. 109

San Francisco, July 18, 1914

No. 3

coy TROLLED BY T. A. RICKARD

PUBLISHED WEEKLY BY THE DEWEY PUBLISHING CO.

AT 420 MARKET STREET. SAN FRANCISCO.
Cable Address: Pertusola. Code: Bedford McNeill (2 editions).

BRANCH OFFICES:
CHICAGO — 800 Fisher Bdg. Tel.: Harrison 1620.
NEW YORK— 1808-10 Woolworth Rdg. Tel.: Barclay C169.
IN— The Mining Magazine, Salisbury House. E. C.

■ess: Oligoclase.

ANNUA I. SUBSCRIPTION:

ea and Mexl M

Other Countries i 21 Shillings or $5

Manager

cond-Class Matter.

AMONG OUR CONTRIBUTORS

Who writes a paper is often as important as what is said.
Our own opinion on what the Administration at Washington
in Mexico lias large value — to us; the President's
opinion haa value to everyone interested, in the nature of
ise, much o! what is written is opinion. Even when
the nn Qtioua effort is made to state farts, and facts

'srmal equation enters because in the mere
. present, Judgment is exercised as to their rela-
The Press tries especially to have its arti-
cles authoritative and we have many friends to thank thai
,: 11. Mosl ot Its contributors are well known

nl need no Introduction to our readers, but we have
ne might i"' interested in a bald statement of
Who's Who as applied to a rei re number.

I ::n i si wmerhayes is t he manager of the Intel
mill Unit he descril.es so clearly. The Porcupine-Crown
Mine Ltd., by the way. is owned largely by the same |
who have done so well with the Crown Reserve at Cobalt.
Mr. W. B. Bi.vTii. who calls attention to the need of a stand-
ard of hardness it tube-mill tests are to be accurately com-
pared, is an Australian who occupies the responsible posi-
tion of chief metallurgist for Bewick. Moreing & Co. at
Kalgoorlie.
Mr. D. F. HlGGINS is an American geologist resident in Korea.
He was trained at the Universities of Illinois and North-
western University, from which schools he graduated. Be-
fore going to the Far East he saw field service with the
State Geological Survey of Illinois and the Geological and
Natural History Survey of Wisconsin.
Mr. G. T. Ja< KSON, to give him the correct initials, is mine
rintendent of the Perseverance division for the Alaska
neail Mining Co.. which it will he remembered is the
name of the operating company of the Alaska Gold Mines Co.
Mr. F. R. [i it 5B1 Is one of the field officers of the Forest
Service who has learned of the practical operations of the
mining law and come to know prospectors through the fel-
lowship of eampfire and tl
Mr. E. E. Hi iija is an experienced observer and writer who
is visiting the important mining districts of Alaska this
u in the interest of the Press.

TABLE OF CONTENTS

EDITORIAL Page.

Notes 85

Lead Poisoning 86

Sulphur Production 87

ARTICLES

Continuous Decantation at the Porcupine Cbowk Mini -

By Maurice Summerhayes 88

A detailed description of a mill treating gold or.- worth
Sir, t" $:'.'> per ion at a cost of fl.il per ton. Crushing
mps an.i tube-mills, ami Dorr thickeners an
jed in sequenci for continuous decantation. Min-
im; 18.460 tens siuei- erj of between t") ami
97 Tier cent.

Ti ia-Mii. l Practice ami the Hardness of Ores.

Bu W. B. Blyth 93

A plen for a Btandard ei hardness in order I ford

real basis foi comparts I Brushing efficiencies, with

ii method of determining the factor and lllustral
examples.

Geological Report on the C ibas Contact Within the

Si av Mining Concession, Korea. By D. F. Biggins. 96

Details i i the Inti ontact metamorphlc gold de-

enabled the Seoul Mining Co. to pas
17591 in dividends in the four years since Its mill

e.l -e the mosl successful Ani'Tieui ventures

111 the Fur Bast.

a Concrete Head-Frame. By <:. t. Jackson 99

ptlo built at 1 he upper

works of tin- Ahisk.i Gastlneau mine at J iau: e

thing ii ' A and Important.

Tin: Mining Law — Proposed Revision. By F. 7?. Ingalsbe. 100

a review of the situation by one who is familiar with
present taw and hopes to see

led with the minim I

Minn nts 01- the Alaska Gold Minks Company.

By E. E. Huria _ 103

- conditions at tins great Juneau property as
i n by our Bpecial correspondent

Costs it the Gseat Fingall Mini: 104

DEPARTMENTS

Iiisi I ssion ;

Workman's Compensation. By Geo. E. Bigelow 105

Value of Dredging Ground. By E. Bryant Thomh ill . . 105

Revision of the Mining Law. By Clarence K. Oolvin. . 106

What is the Matter with Prospecting? By Operator.. 107

Concentrates 108

Review ot Mining: special correspondence from Wash-
ington, D. C New York, Warren, Deadwood, Johannes-
burg, Joplin 109

Tut: Mining Summary 114

Personal 118

Schools ami Societies us

The Market Place:

Stocks and Bonds 119

Metal Prices 119

Mineral Statistics:

Aron Hirsch & Sohn's Annual Copper Report 120

Monthly Copper Production 121

Mining Decisions 123

Recent Publications 123

New Machines &nd Devices: Channeling Machines: Vari-
able Volume Air-Compressor: Commercial Paragraphs. 124

An indez to Volume t08 has been prepared and mil! be sent
on request.

I- 1'iU

\II\IV. \M' * I! Mil h I'H

EDITORIAL

M W

THOM i 1 .:K •

RICHARD

\Mlal .

A U

I'. I .

A\ .,li>.p lutely new discovery' in metallurgy heralded
ie time ago as the Clapp process, which would
make "'extraction recoveriea .is follows: copper 01

6 per ••'■nl; nickel, 99.6 per cent; iron and lead,
in;.; to 99.6 per cent," and would "revolutionize mining
in the Western states." for some unknown reason lias
failed '" revolute. There must I"- a reason.

THE passing of Vietoriauo Uuerta from Mexico's
political arena marks another change in tin- aspect
of Mexican affair*. In thai no good could possibly re-
sult to the Mexieau people from his continuance in
with revolution, secession, and bankruptcy ever
upon the ascendency, il can only be hoped thai in the
reconstruction which now seems pending, broader po-
litical foundations, which will meet the requirements of

the mass of the i pie, will be hud and peace will ensue.

- Don Vietoriauo y sm i sor.

HALF-WATT NITRO LAMPS, the latest develop-
ment in the field of electric lighting, according to

report bid fair to i lify the present methods of illu-

minating. The advance which iliis new lamp marks may
| )C better understood l>> a comparison of efficiency with
the time-h red carbon filament and its currenl con-
sumption of ovi r six watts per eandle-power. The new
half-watt nitro lamp is of the tungsten filament variety
with the bulb filled with nitrogen gas. At presenl the
lamps range in size from 600 to 5000 candle-power, but
with the perfection of methods of manufacture it may
be expected that the half-watt nitro lamp, which is equal-
ly suited to both alternating and direct current, will
be available in all of the commercial sizes.

DECORATION of Mr. Charles F. Rand with the
Order of Isabella by the King of Spain is a pleasing
recognition of his humanitarian and other services in
('nha during the Spanish-American war. It almost
makes us regrel thai America has no official -order of
Merit,' since it could so worthily be bestowed upon Mr.
Rand as r gnition fn ur side of his equally great

work in the interest of sanitation and improvement of

living conditions in time of peace. We shall have tin-
pleasure shortly of printing a description of this work
written by Mr. Rand himself. The able president of the
Spanish-American Iron Company is an exponent of suc-
cessful business on the highest plane, and we are glad
to congratulate him upon an honor worthily won.

I NNUAL drilling contests, which are the aucienl

* sport of the mines and have long lor I the chief

attraction in many ol the mining camps on the Fourth
of July, were in evidence this year as usual. Results
are recorded in the 'Mining Summary' of this issue.

While fi rat -aid contests hav ie to divide attention,

lu-awn. drill .steel, and granite continue to hold the cen
tre of the Btage.

C' I-' VP METALLURGIST is ., degree not c

^ by any of the accredited technical schools, but is
nevertheless a n;d vocation amounting to a profession,
according to Mr. William Jacobus, the original 'scrap
metallurgist ' While most of us will associate the 'scrap
metallurgist' with the 'ragman,' we must admit thai
Mr. Jacobus is worthy of an S.M. at least, if he has
saved the Navy Department $2,000,000 a year by the
institution of his methods in disposing of scrap metal.

TVTIII1.K the Australian Labor Federation is debat-
** ing the feasibility of insisting upon the dismissal

of all non-union men from the Australian goldfields, the

i hamlier of Mines of Western Australia announces
that it will close every mine in that region rather than

be dictated to by labor unions. Mine operators and
labor have always maintained amicable relations in this

district having met in convention everj three years ami
adopted a labor agreement. It is to be hoped that this

policy may be Continued and a Crisis avoided, since if
the business of mining continues it must be at mutual
profil of men and operators.

ll/TINERAL LANDS On Indian reservations is the

-"■*■ subject of a bill recently passed by the United

States Senate. According to the new regulation, all
lands containing the minerals, kaolin, kaolinile. fuller's
earth, china Clay, and ball Clay, within such parts of
Indian reservations as have heretofore been opened to
sett lenient and entry under arts of Congress whieh did
not authorize the disposal Of such mineral lands, shall
be open tu exploration and purchase and be disposed

of under the general provisions of the mining and coal-
land laws of the United stales, ami the proceeds arising
therefrom shall be deposited in the treasury. Senator
Sterling of South Dakota, who proposed the bill, claims
it to he of considerable importance to his state, in that
deposits of fuller's earth of economic importance await
such action to be profitably exploited. Recent produe-

MINING AND SCIENTIFIC PRESS

July is, 1914

tion statistics of the United States Geological Survey
show the production of fuller's earth in 1913 to have
lii-eii 38.504 tons, valued at $369,750, which is an in-
erease of about $65,000 over the preceding year. 'Die
imports of fuller's earth during the year totaled
1,001.

r PllE Committee on Mines and Mining, to whom was
-*• referred the bill to provide for a commission to
codify and suggest amendments to the general mining
laws, has reported it back to the House of Representa-
tives with the recommendation that the proposed code
shall not deal with Lands containing deposits of coal,

oil, gas. phosphates, or soluble potassium salts, and that
the bill be passed as amended. This amendment was
suggested for the reason that the deposits named occupy
a somewhat different status from the other minerals with

res] t to format ion. methods of mining, and their use.

The Department of the Interior has recommended legis-
lation peculiarly adapted to the development and dis-
position of coal, oil, gas, phosphates, and potassium,
which hills are now pending before the Senate and
If. us,- committees on public lands. In the event of this

hill being passed, which seems highly probable, there
will undoubtedly '"■ a commission created to make a
thorough and exhaustive investigation of the subject and
report its conclusions to Congress. The time is oppor-
tune for a discussion of the proposed revision, and we
therefore take pleasure in presenting a discussion of the
subject by Mr. P. R. Ingalsbe under the title of 'The
Mining Law — Proposed Revision,' together with an-
other contribution written by Mr. Clarence K. Colvin.

Both recognize the importance of the subject, ami their
different viewpoints are both interesting and timely.

We trust that a complete discussion id' the subject will

bring out the opinions of those interested so that re-
vision may In- undetraken with full knowledge.

'X4IE American Petroleum Society, which was organ-
•■■ ized to promote the science of petroleum technology,
gives promise of becoming a most useful organization,
and it is to be hoped that the membership campaign
now being conducted will meet with the hearty response
of those interested either directly or indirectly in the
production and use of petroleum, bitumen, and gas.
Tin importance of the oil and gas industry is evidenced
by the value of the production in the United States last
year, which amounted to over +250,000,000, approxi-
mately 71 per cent of the world's supply. In 1907 the
technologic branch of the United States Geological

Survey, acting under authorization of Congress, under-
took a comprehensive study of petroleum and its prod-
ucts, which woi-k was and is being continued by the

Bureau of .Mines. Tt became evident to those in charge

of the work that without the cooperation of the many

men engaged in lie- industry tuid the funding of their
knowledge for the advancement of the industry, this

study would Lose much of its effectiveness. The object
of the Society is to consider, primarily, subjects relating

to the science and technology of petroleum and its

products, with the purpose of investigating those phases
of the subject which are of direct and pertinent value
to the industry, to join the wisdom of the scientist to

the knowledge of the practical oil man for the advance-
ment of the industry, in that the leading petroleum
associations of the United states plan to make tin
ciety the arbiter of standards for the trade, it at once
L'ains a prestige which other new societies of the other
industries might only hope to attain after years
ganization. At the present time there are not only a
dumber of individuals but there are about -14 different
committees in 4:! different societies in the United States
which are investigating subjects pertaining to petroleum
with no forum available for the general discussion of
this subject. That there is a need for this society is ap-
parent and its success as an organization should be
assured. The first annual meeting will be held in New
Orleans on October 15, 1914. and the second in San
Francisco from I Ictober 25 to 30, 1915, where the Society
will act as host at a World's Petroleum Congress.

LEAD POISONING

Lead poisoning as contracted by employees of the

smelters .-in, I refineries in the United states has recently

been the subject of investigation by the Department of
Labor. While the results of the investigation arc largely
statistical, they show conditions at the works toward
correction of which real effort should be made. At the
1!> plants, employing about 7401) men, investigated in
the United States there were no less than 1769 cases of
lead |M>is.ining during the year 1912. From the cases
reported it is seen that the exceedingly high figure of
22 per cent of the employees at these plants have be n
afflicted with lead poisoning. The hospital records at
nine plants showed that 5 per cent of the employees
wet.- afflicted with this malady.

Of the plants investigated there were three which
used blast-furnaces and large Hue systems. While these
plants employed only about II Mil I. or 13.5 per cent, of the
total 7400 employees involved in the investigation, there
wen- 387 cases of poisoning reported at these smelters.
The figures presented may be. ami probably are. in some
instances exaggerated, as there is a tendency among
Workmen to attribute all of their ills to their vocation,
regardless of origin, but it cannot be denied that there
is an unnecessarily high percentage of men poisoned and
a stronger effort toward reducing the prevalence of this
disease should be made.

Lead poisoning became a very serious problem with
the Austrian ore hearth workers in 1889, when there
were 14 eases of lead colic among 61 men at one smelter.
A change in working conditions whereby the hours of
labor were reduced, four men working alternately in
pairs for two hours at a time during each 12-hour shift
and having rest periods of 24 hours between, resulted in
such improvement that in 1902 and 190:! not a single
ease was recorded among the 4:i men employed at the

J.ilv 1-v l''U

MIMV. \M> S< II Mil h l-l

ii ni 1!>12

i i mill

I mi} condii

dating
I a marked improvi

Hen
a mini iinirly

prevalent mill tin- iiianageiuenl undertook investigation
and correction of existing conditions which has
li.nlly eliminnted tl In addition to reducing

siialiiM- fume ami dual to the ininimnm, the Company
made it a rule, and this is important, that every man
wash before eating.

In order to prevent lead poisoning, ration

of the null in iis essential as is modern construction with
every possible means nting dust and fume, and

adequate sanitary appliances. Moat operators agree

tliat it is one tiling to provide sanitary facilities for tin-
men in the way of change rooms, wash rooms, dust-free
lunch rooms, respirators, and the like, and it is another
the men to take advantage nf these facilities. In
the majority of cases the laborer is las, and the onlj
remedy is a rule making violation of sanitary regulation
eanse for dismissal. The matter is largely one of habit,

and when the men see results of these regulations in the

form of a decreased number of eases of lead colic they

will realize their value.

SULPHUR PRODUCTION

One of the curious things about mining is that while
tin- production of certain mineral substances is gener-
ally regarded by everyone as the application of that
ancient art, the exploitation and extraction of certain
other substances, no less truly mineral, is scarcely con-
sidered, even by the profession, as being really mining.
Boughly speaking, the iliu'^intr of metallic mineral out
of the ground is true mining: the digging of a non-
metallic mineral (excepting coal) is something else.
Conversely, if a substance is desired for its metal con-
tent, its digging is mining; if a non-metallic constitu-
ent is the object of the quest, its extraction from the
ground usually fails to rise above the level of quarry-
ing. Possibly oie- reason why quarrying is considered
less dignified than mining is that a 'porphyry copper'
is operated by a highly paid and efficient staff, while
a quarry struggles along with ordinary laborers, paid
about $2 per day. under the direction of a $250 per
month superintendent, who nevertheless manages to
keep operating costs down. Similarly, the small size
of the producing units may be the reason why the
digging of the 350,000 tons of pyrite each year pro-
duced in this country for its sulphur content does Q01
usually come to mind in a hasty review of the mining
industry of this country. The production of sulphur,
whether from ore containing the elemental substance,
from barren pyrite, or from the copper-bearing pyrite

i to the i ttic ehaml

Tlo

I the

politicians the while, thai it

annual return from the sulphur which is ben,- utilised.

The val >f the sulphur production of the I nited

• a estimated h.\ Mr. v -

l'hah-n. of the United S

B e|,„ f difficulty BboUl sulphur is that

ihundantly in plaoes where nobodj wai

and is generally absent from those places when

required, since it commands only a comparatively
low price, the production of Bulphur-bearing material
involves business considerations rather than mining
technology. Thus, for example, pyrite is imported

from Spain to points ,,n tin- Atlantic seaboard, Bince

the railway freight in this country, with additional

handling charges, makes the domestic pyrite cost more
in the vicinity of the principal ports than imported
material. Sulphur from Sicily used to be imported
into the United States in considerable quantities, but

of t snl years the Louisiana sulphur has been pro-

d d and sold so cheaply that Italian imports only

amounted to 125 tons of sulphur in 1913, ; ording to

Mr. 1'halen. Two-thirds of the total sulphur imported
comes from Japan, most of it entering at Portland and
Hawaii, though some of it enters San Francisco in
competition with the copper-bearing pyrite of Califor-
nia. The Hall process, in course of development at
Coram, is likely to cause a change in the California
situation, but can scarcely affect other points; for
freights will not permit the California sulphur to com-
pete with the Louisiana and Japan product at any
L'reat distance from its point of origin.

The Louisiana prod rs are now carrying the war

into Africa, and competing with Italian sulphur on its
own ground. The principal American company has

established a distribution depot in Rotterdam and has
chartered steamers for carrying its product. The Sicil-
ian producers are rather dejected, as working costs
tlere go up as the mines go down. Wages go higher,
because of the emigration of laborers to America,
while the Italian government has restricted tin- grant-
ing of concessions. Some of the deposits have been
worked out, and corresponding new discoveries have

not 1 n made, so that there is every reason to believe

that the Sicilian output will steadily decline. The in-
creasing production of sulphuric acid by th pper

smelters is also a factor in the sulphur situation, though
probably not a disturbing one; for the smelters are
commonly so situated that they cannot compete to ad-
vantage with the present makers of acid on account
of freight rates. The smelters will, in many instances,
have to create a market for their acid. and. since its
output of sulphuric acid is often called the indi of
a country's civilization, progress will thus be made.

MINING AND SCIEN I IFIC PRESS

Julv 18. r.H4

i:\l vnw.'i iin PROPERTY 01 mm PORCVPItfg

C@im{tiiira@iui§ IDasgimiit&ibiioTa ait th® P@ir€Mpiiffi(g Crowim Mnmi@§

By IYIAURICZ SUIYIHIERHAY£S

The Porcupine Crown Mines is situated on the T. &

N 0. Ry., 250 miles fr North Bay in the Porcupine

mining district, Ontario, Canada, and one-half mile from
the town of Timmins. In February, 1913, a •
gamating mill was buill and pul into commission pri-
marily for the purpose of testing the mine sampling and
also for producing revenue.

The small mill was operated until November 15 of
the same year during which time experiments made
(both in the laboratory with cyanide tests and the mill
mi a larger working scale] indicated thai the contin-
uous decantation process would be i h<- must economical.
This was erected and running by November 1~> with-
out interfering in any way with the existing mill, which
was made a unit of the new one. the amalgamating plates
during the erection of the larger mill being placed in a
temporary building which was later removed.

The factors determining the choice of the process
were: 1 short time factor for solution of gold: (2
)nw solution strength required i I 25 lb. 3 rap
tlement of pulp; [4 low costs of installation and opera-
tion (5 small quantity of water required.

The ore is a hard quartz containing approximately
V, of iron pyrite. The grade of mill-run varies from
$15 to $30 per ton. Some of the gold is coarse, bul gen-
erally ii is fine and freely disseminated in the quartz
gangui often associated with the pyrite. With ti
proper from 10 to 20' I of country rock is sent to the mill.

( Irurhing and Eli \ iting

The on is delivered in <;u.s from the shaft house to

the mill, where it is weighed and dumped upon a grizzly

I 1 ' -in. The oversize falls into an ore-pocket of

60 tons capacity and feeds a No. 3 Chalmers & Williams

bronze ball gyratorj crusher set at liA-iu. The dis-
charge Erom the crusher tuns the undersize from the
grizzly and feeds a vertical bell elevator carrying 120
buckets 9 by 9 in. traveling 225 ft. per minute; this de-
livers the ore to a short conveyor bell 16 in. wide travel-

200 ft. per minute, which distributes tl re in

ili.' bin equally to each battery of ten stamps. The ore
bin lias a capacity of ->>'> tons.

The ore is fed to twenty 1050-lb. gravity stamps by
standard Challenge feeders. The stamps drop 102 times
per minute. Th height of drop is 7% in. and height

of discharge 4 in. A stamp duty is obtained of 8.8 tons

for the -'--mesh screens. The battery posts are 12 by
26 in. for the side posts and 20 by 26 in. for the king

posts. The top girt for the 2n stamps is framed in one

piece giving the - (| stamp structure considerable extra

support. Fairlie belt tighteners are used. The mortars
are standard narrow type tor quick discharge and eoarse
crushing.

Two and one-hall' and Ii mesh set ns are used on the

batteries and varied to suit the mill requirements. The
2> q-mesh has openings 0.25 in., and the 6-mesh 1ms open-
ings 0.111 inch.

Classifier and Tube-Mill Closed Circuit

The stamps discharge to two Dorr classifiers, a duplex
in circuit with a 5 by 16-ft. tube-mill and a simplex in
circuil with the 4 by 20-ft. tube-mill. The 5 by 16-ft
makes 29 r.p.m. and the 4 by 20-ft. 31 r.p.m. The
elevation of the elassifiers is sueh that the discharge
from the tube-mills will flow by gravity back to the
classifiers. In the ease of the 5 by 16-ft. tube-mill, this

was accomplished by adding 4 ft. to the standard length

of classifier, the oversize being fed to the scoop with a

I* l'-l t

MIMV. WD >. II Mil | ( PR

• ROM \ MINI S c IIMI'IM. 1 IM1II l>.

solution jet regulated to give ■>' , moisture. With the
4 by 20-ft. tube-mill the desired result was obtained b,>
increasing the radius of the scoop, the one used having
» radius of 52 inches.

Twenty-fonr feel above i )>.■ tube-mill floor are placed
two amalgamating plates, 9 by •"> ft, receiving the Bliine
discharged from the tube-mills, which is elevated by a
triplex plunger pump and suitably diluted. The slop,'
of the plates is 11/4 in, per foot. The plunger pump has
ball valves, the seats of which in time wear elliptical in
shape, necessitating the use of a small amount of air to
assist the pump, and later the valve seats must be taken
out and reseated.

The plates have now been in us,- sis months withoul
material damage. The amalgam forms on the plates as
a hard skin, and is removed with a scraper, care being
taken not to get down to the copper. It is impossible
to keep the plates soft and in good condition for catch-
ing fine gold, as practised in modern amalgamating
mills. Mini this is nol attempted. It does, however, pick
up the heavy coarse gold, for which purpose only it is
required. About 30$ of the total recovery is made from
these plates.

( 'Viximim:

The cyanide plant essentially consists of five 30 by
12-t't. Dorr thickeners, working in series, with an agi-
tator, 16 by 16 ft., between thickeners No. 1 and No. 2.
together with the various pumping and precipitating
apparatus. The pulp is delivered to a No. 1 thickener
at a ratio of 5.25 tons solution to 1 ton solids. The over
flow from tins tank is the 'pregnant solution.' All of
this solution is not necessarily precipitated. If the
overflow is of lower grade than required, a portion is
allowed to by-pass to the pump returning the solution
from No. 2 thickener to the battery storage, which is
allowed to build up in value to a limited amount (see
tabulation following).

The underflow or thickened pulp is directly eon-

bj l in. piping to the Bticti ml of two I in.

diaphram pumps. These are Bel :'_• ft. above the level
i solution in the tank. These pumps will handle
pulp containing as low as 25$ moisture over snort
periods of time. Bach pump has a sufficient capacity to
handle the maximum output of the mill, thus leaving
one pump in reserve. There are two speeds and three
lengths of stroke to vary the volume pumped, giving
ample variation to accommodate the mill tonnage.

The thick pulp 35$ moisture from No. 1 flows from

the diaphram pump by gravity to the agitator, Here
the moisture is raised by adding barren solution until
ante has reached 60' , . « Ine third of the cyanide
is added at this point, the balance at the tube-mill feed.
The pulp is discharged from the agitator continuouslj
to thickener No. 2. Then from this point to thickeners
No. '■> and No. I the decantation is continuous, each tank

having a 2-ft. elevation above the next pr< Ine-'. giving

the overflows a gravity flow from No. 5 to No. 2.

The barren solution from the precipitating presses is
delivered to No, -1. a small portion going to the agitator.
Water only is added to No. 5 equal in amount to the
solution leaving with the thick pulp as tailing, thus
maintaining a constant volume in the circuit. No. 5 is
discharged through a spigot, with an average moisture

content of oil',' only. The diaphram pumps in each case

raisi the thick pulp at 35$ moisture from the various

tanks as already described for No. 1. The solution over-
flows pass by gravity from No. 5 to No. 2. while the pulp
flows in the opposite direction from No. 2 to No. 5. The
value of the barren solution from the precipitating

presses varies from 1 to 3c. per ton solution. The av-
erage assay values of the pulp and solutions in the va-
rious tanks during the months of .March and April are
shown in the tallies.

Phi i 1111 \tiox

Zinc dust is used as the precipitant and is fed to the
suction of an Aldrich triplex pump by a Merrill zinc-

MINING AND SCIENTIFIC PRESS

July 18, 1914

dust feeder. The pump ruses the emulsified 'lust and
solution io two 52-in. Merrill precipitating presses.
These presses are used alternately for periods of 1"> days,
when regular clean-ups are made. By this system all
delays are obviated and a press is in reserve. One-sixth
of a pound of zinc dust per ton of solution has been
found sufficient The barren solution carrying 1 to 3c.
per ton Mows by gravity to No. 4 thickener and the
agitator. The grade of precipitate obtained was $27 50

subjecl to a thorough washing with hot water, which is

run to wast,.. The time for filtering and washing is
aboul 12 hours.

After thoroughly draining and partly drying, the
treated precipitate is dropped into a t> by 11-t't. steam
dryer and the moisture reduced to about 10' , . The pre-
cipitate is mixed with the required amount of flux and
briquettad in a G-rath Little Giant brick press. Drying.
fluxing, and briquetting take about 15 hours. The

A M.I; 01 THE MILL, SHOWING STAMPS ANH TUBE-MILLS.

per pouud from pregnant solution averaging $2.87 per
ton.

Repining

process in brief consists in acid treating the pre-
cipitate with sulphuric acid, filtering, washing, drying,
fluxing, and briquetting the resultant material. This is

smelted in a Rockwell furnace.

For acid treating a wooden Lead-lined tank. 4 by fi ft.,
with a mechanical stirrer is used. The ratio of
aeid to water is aimed to be kept al l to 5, the ani

I required is three-quarters to one times the weight
of dry precipitate treated. The time allotted to aeid

3 hours. The sludge from the aeid tank

is run into a Perrin press imd the strong filtrate of
ZnSO . etc., allowed to run into a wooden tank to settle
until the next clean-up. The mat. -rial in the press is

briquetting machine is made by the Illinois Construction
Co. ami will handle, when operated at maximum ca-
pacity, 960 lh. per hour of mixed precipitate and flux.

The briquettes are charged to a double chambered No.
2 Rockwell furnace using crude oi] as fuel. About 8
hours are allowed for the charge to melt down before
pouring. The resulting bullion averages about 750 tine
in gold and 90 in silver or 840 in precious metals. The
slag carries $400. to $500 per ton. Some matte is pro-
duced which retains a small amount of gold and silver.

The following are the arid and fluxes used per 100

lb. precipitate: pounds.

H.90, 75 to ] 00

After acid i r .;. on at

Borax glass 11.5

Soda • 5.7

Silica 3.0

•M I

MINIS'. \\i> m || \ i || |,

PRI SS

■ H VI. ■MH

it. m <

it y< i i

■...Us

eflnlOR charsM

tt"> Bne ices prod

" MM

0.0410

- Ore

*■ Pulp or Slime

- '.\v<7 tion or HtWV/T

'- Pnectp/fatt

I" lliiv

Power

Power for the mill is furnished by the Northern
I a Power I'm. from it-, hydro-electric plants on the

-'ami river. The high-tension current is delivered
property at approximately 12,000 volts, where it
iped down ;.i -"»-"•< » u>lts. and .-it this pressure is
ghoul the mill for motors. Lighting transfot
lis down further to lln volts. Power is paid for
on !• maximum 3-minute peak obtained during the month
;it the rate oi >' I per horse-power year.

The mill as above described has been in operation G
months, ;i sufficient length of time for any erroi

features in the pi >< to develop indicating its

adaptability or otherwise to the ore for which it was

designed, During this time many further experiments "~i_~J^'_. ._.+TJ~" ; kcm

FLOW-SHEET HI I'liRCtl'TNK ( RIIWN MILL.

MINING AND SCIENTIFIC PRESS

•Inlv 18. i:»14

have been made, more especially toward making ;i more
complete extraction without further grinding. As may
be Been by a study of the attached assay averages, a
further benefit may be obtained by increasing the time
for agitation, some metal continuing to be dissolved i'i
the thickeners following the agitator. In this connec-
tion it may be stated thai a second agitator is now in

pr ss of erection. Re-cyaaiding the washed tailing

pulp with the working solutron for 12 hours indi
that nut more than about 3c. additional can !»• expected
to be i overed without finer grinding.

dt' March and April. Tins,- an- the labor, stores, and
power costs only, and do not include proportion of
assaying, administration, depreciation, etc., which are

normal for a property of tins size, our total operating
for the first quarter of 1!'14 being $(i.7.">. including
all overhead eharges.

MYSCELLANEOl'S I 'VI \

Per tun t'nitcost

milled, II). per lb.

Consumption of KCN ".74

Consumption of Zn 0.98 0.065

i lonsumptlon of CaO 3.50

INTEBIOB 01 iviMln imam OF PORCUPINE CBOWD Mil. I..

There has been milled and eyanided 18,460 tons of ore
with the plant described. The extraction has been be-
tween 96 and 97. The loss in dissolved metal content in
the tailing for March and April was as follows:

March. April.

Value of solution per ton $0,120 $0,100

Value of solution loss per ton of ore milled. . 0.052 0.043

The above result compares most favorably with any
class of filter which might be used on a pulp such as
that here treated. The pulp as discharged from No. 5
thickener, containing an average moisture content of only
30%, is in an ideal condition^for sampling, and while
this lias been done by band up to the present time an
automatic sampler will be installed in the near future.

Attached hereto are the milling costs for the months

MlLl-IM. Costs FOB MONTHS "I MARCH AND APRIL 1914

Miiiin 1914 I tons milled. 4420)

Cost

Wages.

terial.

Power.

Total.

per ion.

Crushing

$333.89

$61.60

$87.57

$483.06

$0.11

Stamps

834.23

141.26

137.61

613.10

0.14

Tube-mills ....

188.56

s::n.2l

1,607.40

Amalgamation

195.27

142.56

0.08

Solutions

. 216.92

331.73

83.40

632.05

0.14

Thickeners . . .

219.48

4.31

104.25

328.04

0.07

Precipitation .

132.68

377.88

510.56

0.12

Clarifying ....

150.40

1.S3

152.23

0.03

Agitation

115.81

0.03

Refining

267.26

108.88

41.TO

417.83

0.10

Mktg. bullion..

144.8!

144.83

0.03

Totals

$2,154.49 $2,154.09 Jl.o34.lC. $5,342.74 $1.21

MI\|V. AM> m II Mil |. I'KI SS

■

Thlck< ii. n

■ Ion

Reflmoj

i,i

Total*

$4,171.11

nril Dll miliar

lii f 1 1 « - di avripliou
thai t h«- Mm, I t.
sampli principle can

hi liraca, iiii.I ii the nmple to be t • — t « - . I is pu) through
iiml through a samp! until the required weigh)

of -a • 40-meali sand is obtained, the ramill will Ih'
accurate. The object is to keep the physical character

md m1 w ji \ > the Mini Pai tieli
derived from the wel cruabing "t rooks, and thi

PORCUPINE CROWN CYANIDH Mll.i. AVERAGES run ICARCR 1914 (141 toni per d

Thick, l. Agitator. Thick.:'. Thick. S. Thick. 4. Thick.:,. Battery. Storagt Bol. pptd.

■■Id $2.43 fn.ss $u.::t $11.17 $OJU $'>.:," 11.88 618 toni

". ss

I 'ml i- I

pulp to sol. 1111-

i "--- I to 1.81 1 to 0.614 I to 0.614 I to 0.614 ltoO.540

Ratio pulp lo solution

lto6.3S0 ItoUi t to 5.800 1 to 4.1 I to 4.600 L to 1.100

t ■ 1 1 1 i > to

■ lltUKC Wll. 1111-

d.-rilow 88toS7 48to67 62 to 38 62 to 38 62 to 38 66 to 36

CYANIDE Mil. I. AVERAGES KOIi APRIL 1914 (120 tons per day)

Av. beads, $2.87.

Av lulls. |0.04.

Thick. 1. Acitator. Thick. 2

lived sold $3.17 *i.74 $0.80

riiilisnolv.il Kold ... L81 1.06 0.82
Ratio inilp to sol. un-

dirtlow Ito0.562 1 to 1.37 ltoO.64

Ratio pulp to solution

' 1 to 6.260 1 to 1.40 1 to j.25 1 to 4.41

■tage pulp to
percentage sol. un-
derflow t',4 to 3fi 42 to jS 66 i

Thick. 3. Thick. 4. Thick. 5. Battery. Storage. Sol. pptd.
10.26 $ii.n |0.10 |0.46 |1.87 187 tons dally.

0.60 0.68 Av. heads. $2.33.

Av. tails. $0.08.
1 to 0.54 l(o0.54 1 to 0.43 1 to 5.25

1 lo 4.41 1 to 0.97

65 to 35 65 to 35 69 to 31 16 to 84

By W. B. BLYTH

•A simple and accurate method for comparing the
hardness of ore sand, judged from a tube-milling stand-
point, has resulted from experiments which I have con-
ducted. The principle of crushing in a tube-mill is
quite different from thai employed in the grinding-pau
or the stamp-mill, and whal might be considered as ex-

cellent crushing material for machine may prove

quite unsuitable for another. This is illustrated by
the fact that the most easily ground sand shown in the
subjoined table is derived from an ore which in bat-
tery parlance is the 'toughest' in the series. Institute.

of alining and Metallurgy sci ns are used because they

an- the only screens available whose aperture diameter
can be guaranteed for a given mesh.

Stadler'sf excellent method for computing grinding

efficiencies is used to illustrate the res| live hardness

of the ores test,-,!, hut the regrind factor is only an

•Abstract from Monthly Journal of the Chamber of Mines
of YAV stern Australia.

i-IYan*. i. M. M. xix.. p. 471.

rived from dry crushing in rock-breakers are always
angular, but the particles derived from crushing rock
in ball-mills or disc pulverizers are rounded. Naturally,
the grinding result mi a sample of sand will vary
greatly, according as to whether the sand particles are
round or angular; and this is necessary to prepare
the sand by either of the processes above described. The
capacity of tube-mills varies a great deal on different
ores, and only experiment will indicate the work that
will be performed in any given ease.

In designing new plants, the duty of a grinding niu-

ehine causes the designing engineer a lot of anxiety,
as the expected value of the tailing is often strictly
proportionate to the fineness to which the ore is ground.

Al present, the duty on an untested Ore can only In-
guessed from its appearance, which is often similar. A
standard preliminary small-scale test from which Un-
capacity of a tuhe-inill can be accurately estimated
Would lie of vain,-, and the suggested scheme endeavors

tn supply that want. The attached table of hardness
gives the tabulated results of testing sand from 15
mines, and also that derived from crushing an average
sample of Danish Hints. Unfortunately, it is quite

impossible to get correct tube-mill crushing data in each
ease. I do not have sufficient faith in any method
yet propounded for comparing grinding efficiencies I i

MINING AND SCIENTIFIC PRESS

July 18. 1914

attempt a comparison from the grinding results of tube-
mills working under different conditions. Successful
comparison can only be attempted when the tube-mills
are working under similar conditions with regard to

Np I. pebble load, grade and tonnage of feed, etc. In

only two cases in the subjoined table has it been pos-
sible accurately to compare the work done by similar
sized tube-mills in the respective plants. In the case
of No. •"> mine, whose sand has a regrind factor of 354.5,
a tube-mill has a 30% greater capacity than on the
sand from No. 11 mine with a regrind factor of 266.3.

Necessity op Having t Standard

'Pests on tube-mills working under different conditions
mi cither mines indicate thai this ratio will remain about

the Same, but these tests eailllllt lie accepted as reli-
able. Aii elaborated table of this nature would allow
operators, working in different parts of the world, ac-
curately tn compare grinding efficiencies under similar
conditions. Some standard should be established, and
this is introduced as a test which can be made by any
operator who '-an secure a set of J. M. M. screens and
a 5-gal. glazed earthenware barrel. A study of tech-
nical literature dealing with grinding capacities and
grinding efficiencies illustrates the fallacy of generaliza-
tion. It is quite useless comparing capacities and effi-
ciencies nf grinding machines unless the ores operated
on can lie accurately compared.

to 2 in. diameter, and 16 lb. of water, is introduced
into a 5-gal. glazed earthenware barrel and ground for
90 minutes at 60 r.p.m. A sample of the ground prod-
uct is then taken, dried, and graded with a mechan-
ical grader 40, 60, 100, and 150-mesh I. M. M. screens.
The value of the grading in energy units is then cal-
culated by Stadler's method, and this amount, minus
the original value in energy units, represents the re-
grinding factor in the table.

Example

- Feed -

- Tailing -

-
p

+ 40

17.5 X100 =1750

16.8

> IT..",

=294.0

.. ,;u

29.2

X20.0

=584.0

+100

16.4

X 22.0

=360.8

+ 150

6.6

X24.0

=158.4

—150

31.0

X26.5

=821.6

Tot.

. 221s. 7

Total

energy units, tailing. =

=2218.7.

Total energy units,

teed =1

750. Difference, 468.7 =

regrinding

factor.

A table of hardness based on grinding capacity of
tube-mills run under the same conditions, with regrind-

/ •;:// r.

(4-75-

Jt-68 7

'/.'■( ':. 3

J-M-5

<,.:■■: +

' !■'■' . ■ ' ■'.'-'

14-20

■'5

aaaiak

6, " ' v,fvi

304-
50-4

i _.; ■ „ : fi :: .,,, .

', |28l :

■10

im*

aIS&3

13;
14*

|2fi4-
■\Z6IS
1*51-8

Uig-l

,16 |l3o-4.

TABLE OK HARDNESS. BASED OS GRINDING CAPACITY OF TUBE-HELLS RUN UNDER THE SAME CONDITIONS. RE-
GKINDINi, FACTORS IN TERMS OF ENERGY UNITS. THE HIGHER THE REl.RINIUNd FACTOR. THE GREATER
THE I M'Uin OF THE TUBE-MILL. REFERENCE TO NUMBERS:

1. Accumulated sand from crushing No. 2 ore.

2. Quartz and schist in highly-sheared dolerite.

3. Sand feed to tube-mills (Broken Hill).

4. Sand feed to grinding pans (Broken Hill).

5. Sulpho-telluride ore (Kalgoorlie).

C. Return raff screen to rolls (Queensland copper ore).

7. Queensland sulphide copper ore.

S. Blue quartz and greenstone (Murchison, \V. A.).

9. Concentrated ironstone sand (East Murchison. W. A.).

10. Concentrated jasper sand (Murchison. W. A.).

11. Concentrated ironstone sand (Murchison, W. A.).

12. Queensland sulphide copper ore.

13. Concentrated ironstone sand and garnets (Yilgarn, W.A.).

14. Clean white brittle quartz (Kalgoorlie).

15. Concentrated jasper sand (Murchison. \V. A.).

16. Danish flints (tube-mill pebbles).

The method of computing hardness is as follows: A
sample of ore to be tested (wet crushed) is graded (I.
M. M. screens) until 8 lb. of -20 +40 sand is obtained.
A charge consisting of 8 lb. of sand. 8 lb. of flint. 1

ing factors iu terms of energy units, is shown in the
diagram above.

The higher the regrinding factor the greater will be
the capacity of the tube-mill.

MIM\i. \ND SI II Mil I. I'KI S3

a. o. K means

•'I'll, general location of the Suan mining diatriot,

it mi central Korea, about 66 nilea eaat-aonth-

• tii.- city of Pyeng Van.;. Korea. The Suan eon-

i tj b) lixt) Korean It, <>r mi

The general geologic feature* "t the diatriol mapped
caudal of a aeriea of asdimentary formationi in
traded by » granite batholith. Tliis granite in com-
ing np through tl ater pari <>i the earth baa op-

area of about two hundred and sixty square miles.
The area mapped in detail in the present survey is
in the shape of an elliptical ring, shown by the heavy
line on the map, averaging three-fourths of a mile
wide and about twenty-five miles in circumference.

•Reprinted by permission from geological report made for
Uv Suan llining Company.

lifted and pushed aside the overlying and surround-
ing rocks with tremendous force. Erosion has bared
the mass, showing a rim of upturned edges of the
sedimentary rocks around the granite. In the imme-
diate vicinity of the granite, the sediments have been
changed — metamorphosed — to schists, marbles, and
other metamorphic aggregates.

MINING AND SCIENTIFIC PRESS

.luiv is, nn-i

The granite core forms the highest pari of the eon-
cession, and hence the drainage lines all go outward
roughly like the spokes of a wheel. Where the streams
cross the contact between the granite and the sedi-
mentary rocks, it' there is gold present at the con-
tact, they carry the metal for greater or less dis-
9 down from the contact over the outer rocks
whose upturned edges often form excellent natural
riffles for catching the gold. The principal streams
in the district are the Nam Tai Tong Kong, which
Hows westward along and near the north edge of the
concession, the stream which flows northward from
near Tul Mi Chung through Pai Mi Chang, about a
third of the way from the west side of the conces-
sion, and the stream which flows eastward from Suktari
to Oo Kang, just inside of the north edge of the con-
cession.

Extent of the Intrusion

The general shape of the main intrusion is an el-
lipse, with its long axis northwest and southeast, about
eight miles long, and the short axis about five miles
long. The sides or contact of the main granite in
general dip away from the centre of the mass. The
angle of dip varies from about 30° to vertical. At
no place have I seen a dip of the contact toward the
granite, though a local bulge might cause such a con-
dition to arise in some particular spot. The separate
areas of granite southeast of Hoi Kol are not sep-
arate intrusions. The steep granite hill back of the

Near Nam No! (and one at Tong Ami there were
noted a few quartz porphyry dikes, very light in color
and very much fractured into splintery and angular
blocks. They have no significance in relation to the
mineralization of the district. They may be connected
with the Song Hyup granite.

The rocks of the rtgion as a whole, with i
tions, are Doubtless Paleozoic in age. I would make
ss that the Suan slates and the Hoi Kol lime-
stone approximate the Carboniferous, and that the
quartzite at Tol Ko Kai marks an unconformity be-
tween them and lower rocks. The quartzite at Tul
Mi Chung may be a separate quartzite, but assuming
that it is the same one, it may be assumed for pres-
ent purposes to mark an unconformity between the
Suan slates and the Hoi Kol limestone on the one
hand, and the Tul Mi Chung and Tong Am limestones
on the other.

The fact of the intrusion causes the general struc-
ture of the surrounding sediments to be a quaquaversal
one in general ; that is, the sediments all dip away from
the granite, or outwardly. From about Nam Xol to
Tul Mi Chung there is a very important exception to
this rule, however, for the sediments dip toward the
granite. This anomalous condition has been brought
about by the great opposition to the Unjinsan uplift
offered by the Siroo Pong San massif in the western
part of the concession, which was also very likely be-
ing uplifted at the same time. The contact along
this place is about vertical, but the slates dipping

Fig. 1.

' ' 5 var, 6r»«'te

\ - -
/ *

Fig. 2.

outcrop of the ledge at Hoi Kol is almost a similar
separate outcrop. A cross-section through these areas
would look as shown in Fig. 1. Erosion on the east
side of the ridge has reached the granite before the
sediments on the top of the ridge have been taken
away. More in particular, the contact at IIol Kol is
as shown in Fig. 2, where the dotted line indicates
the continuation of the contact in its approximate posi-
tion before erosion. I show this in detail here so
that it may be clear that the conformation (which, it
must be remembered, is only the horizontal ortho-
graphic projection of the intersection of the surface
of the contact and the topographic surface') of the
contact at Hoi Kol does not indicate that a sharp
bend or any bend at all may be expected to the south
in the east workings, but the contrary.

toward the granite have probably had their east edges
resorbed by the granite.

Regarding contact metamorphism, it may be said
that there is evidence that there was reerystallization
of the minerals and rearrangement of the elements
both with and without the help of materials from
the granite magma. The metamorphism is divided
into two very distinct stages. In the first were formed
principally silicates, and in the second were formed
principally sulphides and the metallic gold-silver alloy.

The Suan Orebodies

At the Suan mine at Hoi Kol there are two distinct
types of ore in two distinct groups of orebodies. I
shall call these the western and the eastern groups.
The western group takes in the locally known 'west-

Jlllj

MIMV. WD S< II Mil I. I'M

-r.<ii|. Ink.-, in the lo

known 'centra

with both >!•• 'north iplit' ind it- 'south upln."

*l*ti. ■ rin.-.t of tabular "r lenticular

rtenaion >n the

. whieh extendi along the west aide "t

Hi.- ll"l Kol valley. The l»-t movement on thia hall

near!} in t li<- dip of the halt The •
group r more irregular bodies on ■ aeriei

of interlocking fault aonea which all together make

up oni one running about parallel to the < •

tact and at about right anglea i" the weal fault. The
average movemenl in tins tone waa laal down to the
aouth at about 80 . probablj a settling of the granite
in cooling, and the aone aa a whole dipa 60 to BO
toward the contact in the upper levels, bat seems to
be about vertieal in the lower levels. The western
■one dips 55 to 60 to the south. The western aone
continues out into the granite, while the eastern one
runs at about parallel to the contact.

The distinctive minerals of the western '.'roup are
tetrahedrite and dolomite in addition to the other
ore and gangue minerals. Sphalerite and galena may
also belong ni this category. Tetrahedrite and dolo-
mite are never found in the eastern group.

It is clear, then, that the two ores have an entirely
separate origin. The western ore was deposited from
gold-silver- copper- iron-ainc-aritunony-biamuth-magnes-
ium bearing solutions working laterally along the fault
aone tn m the granite into the already somewhat al-
tered limestone. The calcite in the limestone was the
mineral most easily oust, -a by the newoomers. Bismuth-
init,- is leas than in the eastern group, Impregnation
into the walls did not extend a very great way from
the principal fault surface.

In the eastern group, gold-silver-eoppcr-iron-bismuth
solutions working upward from some source in the
granite below flowed along the complicated channels
of the fault /one. As in the eastern ore the calcite
was most easily replaced, but diopside and phlogopite
were also replaced. The presence of pyrrhotite as an
important sulphide in the main east north stope ore
must be emphasized here, as it has not been recognized
heretofore.

The 'J lngub Minerals

The principal gangue minerals of the western group
are calcite, dolomite, quartz, diopside, phlogopite, and
a little garnet. The principal gangue minerals of the
eastern group are diopside. calcite, garnet, phlogopite,
an asbestos (probably a fibrous amphibole), tremolite
<?), wollastonite (?), and a little quartz.

The eastern group is doubtless associated in origin
with the miarolitic Hoi Kol granite, and the channels
deep clown in the earth along which the solutions which
carried the metals of the eastern group arose, are un-
doubtedly connected with the 'pipe' of the Hoi Kol
aranite. which is itself a phase of the magma given
off after cooling had commenced and after the mass

of the batliolitli as a whole had I

V || .i dl ;

other linn. ral.i, probably including some magnetite,
along the contact. Then (he pyriti was parti) ■>
to hematite and the granite to ■ green quite

unlike the granite in appearanoe, and part ol the

limestone waa mad< "t .i chalk) appears! The

present digging msj I"- at a plsee whieh i* on|) the

bottom of a deposit whieh has all I d eroded away

leaving the gold for the most part, ..i irs.-. in the

placers below.

Till. Tim. A H I IBJ

The ores at Tang Am are different from all ol the

others in that they do not owe their origin to the Suan
granite. Thej are genetically connected with certain
dikes which also occur at the proa] t These 'likes

have been highly metalliferous. They have both meta-
morphoseil the enclosing limestone and have imparted

to it metal-bearing solutions, from which the sulphides
have been precipitated. The place is very interesting
m its occurrence of molybdenum and of cuprite. The
latter mineral was seen nowhere else on the conces-
sion, and the former only at Peh Wha. The diorite
may be an offshoot from the main granite, but the
indications are that it is not only separate, but much
older than the granite. Some prospecting should be
done at this place up the little valley in which is
the main adit, several hundred feet above the adit.
At that place copper float may be seen, and there is
evidence of one of the dikes nearby to the northwest.

The long directions of the orehodies at Tul Mi Chung
seem to be from about parallel to about 30° to the
contact, and to lie along shear or fault zones. They
are more or less closely associated with the 'Weigall
granite' and probably bear much the same relation to
it that the IIol Kol ores bear to the Hoi Kol granite.
There is very decisive ocular evidence of pnenmato-
lytic action at Tul Mi Chung; that is. that the circu-
lation and work of magmatic waters has been very
active, even altering the 'Weigall granite' to a form
scarcely recognizable. There seems to have been con-
siderable secondary concentration, and a critical study
of the orebodies might give valuable hints as to the
depth to which the deposit may be expected to go.
Such a study, to be of great value, should be made
before the ore on the upper level is stoped out. At
Peh Wha also there has been an unusual activity of

tl manations from the granite, but the gold content,

at least as far as the prospecting to date indicates,
seems to have been a little low.

At Sang Dai there are two large masses of so-called
'garnet-actinolite rock,' which contains also much cal-
cite and considerable amounts of quartz and epidote
as important minerals, formed by the metamorphie
action of the granite. The ores are associated with
certain aplite dikes whieh are, in part at least, a little
later than the granite. The mineralogic and meta-
morphie changes which have taken place at Sang Dai
are very complex and need not be entered into here.

•-

MINING AND SCIENTIFIC PRESS

July IS. 1914

Tong Mu Cheh is of interest on account of the
:;ee of a good deal of asbestic material, and on
account of the occurrence of considerable amounts of
ehalcocite which the Koreans mined in olden times.
The diggings at Moonbowie are in a very impure meta-
morphosed limestone and hornfels with a great deal
net rock in the neighborhood. Chemical activ-
ities originating in the granite do not seem to have
been very active here. At Myung Tang Morru I saw
no signs of mineralization. The opening is rather far
from the contact. At Chan Na Kol the mineralization
present is probably of the same type as that at Peh
Wha. and I have already spoken of the area between
the two.

Criteria for Guiding Prospecting

Fr'">m the observations made in the Suan district,
the following criteria for guiding prospecting have
been deduced. These criteria are probably not com-
plete, and other persons might suggest alternative or
additional ones.

Leached, oxidized, rusty-looking, and copper-
stained outcrops (this criterion is. of course, a gen-
eral one for all districts). (2^ Placers either at or
below the contact. (3^ Old Korean workings. (4)
Contact minerals, such as tourmaline, diopside. garnet.
Evidences on the surface of faulted or sheared
zones in the rock just outside of the contact. (6)
Limestone contacts are more likely places than schist
contacts with the granite. (7 Especial activity of
masmatic waters, as shown by the degree of intensity
with which the metamorphic minerals are localized.
- Evidences of differentiation in the magma, as
shown by the presence at the contact against the
granite of small bodies of igneous rock related to the
granite.

These criteria are intended to apply only to depos-
its along the contact. Especial attention is called to
the importance of the fifth and the eighth ones. The
last one is the feature which separates Hoi Kol and
Tul Mi Chung from all the other present openings.

In outline the geologic history of the region 6
to have been as follows : First, there was a granite
or granite-gneiss land area, now the central granite-
gneiss of the Siroo Pong San and the Tai Chung San
area, on the west of the concession. This land was
submerged, and on it were deposited various sediments
now seen in remnants, as mica schists, folded in the
Siroo Pong San granite-gneiss. The area was uplifted,
folded, and eroded. It was again submerged and a
series of sediments with a thin quartzite at the base
was laid down. The Tul Mi Chung and Tong Am
limestones belong to this period. The area again
emerged from under the sea. was folded, intruded
by certain igneous rocks, eroded, and submerged a
third time. Quartzite, the Hoi Kol limestone, the Suan
slates, and possibly other rocks were deposited. After
the following uplift, erosion, and intrusion by the
dolerite. and part erosion, there is a great gap in tb"

history which would require observations far outside
of the region to fill. There was probably another s
of sediments laid down which have now entirely dis-
appeared from the central part of the earth,
likely that at the same time there was a doming to
the west which is now seen as the Siroo Pong San mas-
sif. With the cooling of the Suan granite sundry
after actiAas took place, including the appearance of
the Hoi Kol granite. Tul Mi Chung quartz--

which are due the formation of the ore depos-
its around its border, and the last of which was the
■f the basalt. The settling of the uth-

east of the concession while lava poured out over it
and buried the former topography was the last chap-
ter. Today the processes of erosion are busily at work
leveling the mountains for the beginning of another
cycle.

General Conclus: -

To recapitulate the origin of the ores, referring, of
course, in particular only to those along the contact
with the Suan granite, one must conceive of the gran-
ite as being in a molten state or in a liquid state
somewhat akin to the molten state, in which a large
amount of superheated water may be thought of as
acting as an exceedingly powerful solvent. An •
of potash and alumina having crystallized out as the
orthoclase phenoerysts. the rest of the substances be-
gan to crystallize together with the slowly cooled
magma. When the outer shell of the mass was hard
it cracked to relieve the tensile stresses set up in it-
self by its further cooling, and through these cracks
came parts of the inner unconsolidated magma, and.
more important for our purposes, the water released
hy the solidification of the inner parts of the magma.
Much evidence suggests that this water was alkaline in
nature and that it bore in solution metallic sulphides
such as iron, copper, bismuth, etc as well as gold and
silver in some soluble form. It contained also fluor-
ine, boron, and silica. It changed gradually in com-
n. The substances, notably calcite. in the wall-
rock against the granite precipitated the sulphides and
the sulphides precipitated the gold and silver . whieh
the water exchanged for the materials of the wall rock
and took its new load of non-metallic material away
with it the process of metasomatism . Finally ero-
sion bared the whole thing so that man has been able
. • at the mineralized places, and locally surface
water has worked a secondary concentration of the
sulphides while erosion was in progress. Such is the
history of the ore deposits of the Suan district. The
Suan district probably offers one of the finest exam-
ples of contact metamorphic phenomena to be found
in the whole world. With study and some sood chem-
ical analyses. I am certain that some of the mooted
problems of the formation of ore deposits and of con-
tact phenomena in eenersl would be definitely settled
for that district at least, and the district could be-
ss7c odc in the annals of eeolosrv.

I- 1914

MIMV. WD S< II Mil I. I'KI SS

A Comcirete He&d-Fr&me

Tli. Mo I
tioal

nine
of the Alt

.M Mining
Ims a total depth
of mi n. The
collar of the shaft
has an altitude of

• ft. alxi\e

leveL The she

• ••ti-ii by the Alexander at a depth of

and the main 1m. ist is built "ii this level in a

statmn < - ut in the foot-wall. The ropes bom tin- drams

and under deflecting sheaves, then up

the ladder-way compartment of the shaft and over the

main sheave wheels near the top of the reinforced oon-

head-frame, and then return to the cages.

Owing to the collar of the shaft being on a hillside

FINISHED HEAD-FRAME AT PERSEVERANCE MINE.

and also at this elevation a very heavy snowfall being
experienced during the winter months, a reinforced steel
and concrete head-frame was designed, in which the

a, c. r. jachsuh

sufficient height to
vide ■ safe margin for over-winding.
In building tl all Inmbi •

mriit. and sand .1 up the shaft and

PLAN OF 111 U'-l KWIl. SHOWING POSITION ul BBXAVEa

the rock was taken from the hillside nearby and Washed
before using. A small gasoline mixer was used for
mixing the Concrete. The mixture was. 1 of cement,

sand, and 5 of rock. The mixer was placed on the
hillside near the rock pile at a sufficient elevation so
that the concrete from the mixer was wheeled along a
scaffold and dumped into the forms and tamped. The
reinforcement used consisted of old 12-lb. rails and worn
hoisting cable. The walls of the head-frame have a
thickness of 2 ft. 6 in. at the base, and taper to 1 ft. at
the top.

After the concrete had set a few days the forms were
.1 at the back, and a dry wall consisting of large
rocks was built up to a height of about 25 ft. Loose
gravel and rock was then sluiced down and placed at the
back of the head-frame to a depth of about 25 ft., giving
i; a batter from the head-frame to the hillside, so as to
take up the heavy snow pressure.

New PLANT Oil the Government Cold .Mining Areas
Consolidated mine. Johannesburg, during the first quar-
ter of 1914 cost $490,000. A 50-drill Fraser & Chalmers
air-compressor was installed, and good progress was
made with foundations and buildings of the mill. This
is to consist of the following: one hundred 2000-lb.
stumps to crush 50,000 tons of ore per month, ten 6 by
lli'^-ft. tube-mills, amalgamating plates after the tube-
mills, three sand-collecting tanks 56 ft. diameter to hold
7-tO tons each, belt conveyors and Blaisdell distributer
to fill eight leaching vats 56 ft. diameter, six 19i/ 2 by
70-ft. slime-collecting tanks, nine 15 by 45-ft. air agi-
tators, and a Butters filter plant.

Gypsum Production of the United States in 1913 was
2,599,508 short tons worth .+6.774.822. compared with
2,500,757 tons and $6,563,908 in 1912. Gypsum sold
crude amounted to 46:i.l:)6 tons, of which 85$ was
used for portland cement.

1(111

MINING AND SCIENTIFIC PRESS

Julv 18, 1!U4

Tfa® MinME&g Law — Proposed! Reviiskinn

Br F. R. IHGALSBE

It Beems almost self-evident, considering the many
articles on the subject which have recently appeared
in the milling journals, that thefe is a basis of Eael
tor some of the criticisms aimed at our federal statutes
relating to the locating and patenting of mining claims
on the public domain. I believe that the law is good
in the main, and in the discussion which follows cer-
tain changes are proposed, none of which, however,
would conflict seriously with the basic principles upon
which our law was written. For instance, I believe that
the discovery requirement is basically sound and an
annual amount of assessment work is consistent with
the proper development and disposal of our public min-
eral lands, for it is only by development that ground
can be classed as mineral or non-mineral. To do away
with the discovery requirement would mean either one
of two things: the Government would be confronted
with the necessity of classifying all its mineral lands
and alienating them from all other forms of entry, which
would be an immense task. and. on the face of it. im-
possible; or it would mean that a leasing system must
be worked out which would provide for the reversion
of such lands to the Government as were shown upon
exploration or abandonment to be non-mineral bearing.
It seems unlikely that the mining industry of this
Country would look favorably at the present time upon
any leasing system which could be devised as applied
to the whole body of metal-bearing mineral lands, and.
on the other hand, it scarcely seems probable that the
Government will attempt the classification of all its pub-
lic lands as to mineral character at the present time.
Great cost and unsatisfactory results would probably
stand in the way. If such a classification were certain
..f fairly accurate results the cost would probably not
be seriously considered, but any field engineer who has
spent a few seasons in examining promiscuous undevel-
oped mineral claims can fully appreciate the difficul-
ties in the way of classifying areas on which 'gophering'
lias been done, not to mention those where no prospect-
ing at all has been done. The reasons for this depend
upon geologic principles which are outside the purpose
of this discussion. Those persons who are prone to find
fault with a Department for enforcing the mineral laws
should not forget that there are thousands of mineral
claims in the Western states on which not a stroke of
work has been done since the day patent was issued.
This condition becomes the more deplorable when we
realize that our public mineral land is fast passing into
private control, and it is only a matter of a few years
when there will be no mineral land to patent.

Admitting that our present system is better than a
new one which would entirely overthrow the present
law as a whole and the interpretations of the courts

for many veal's past, we will assume that it needs mod-
ernizing in some respects, and that Congress should pro-
vide nieans*for universal enforcement. 1 believe the fol-
lowing points arc worth consideration in detail:

1. There is considerable ignorance in some localities
as to just what our law means.

12. ( lertain injustices are possible under the present
law.

3. Opportunities for fraud under the present law exist.

■i. The lode claim is not large enough to provide ade-
quate protection to a valuable mineral discovery, hence
the so-called protection claims' have come to be a cus-
tomary means of supplying that protection, although
these claims have no legal existence other than that con-
doned by custom.

Ignorance of the Law Too Common

If any revision of our mining statutes is made, it
should be in such clear language that its exact meaning
cannot be doubted ; and then the Governemnt should
undertake a crusade of instruction by posting the laws
in all postoflfiee, land office, and other public buildings
in the public land states, and by supplying copies of
it at all public offices for free distribution to interested
people, without making it necessary for them to write
to the proper officials for a copy. Out of the several
hundred prospectors and locators whom I have visited
I cannot recall one who had a copy of the Federal min-
ing statutes at hand.

I am satisfied that in the past, and to a great extent
at the present time, a great deal of the criticism of the
present law is based upon ignorance of its exact mean-
ing and interpretation by the courts. The Govern-
ment has not been careful enough to educate the pub-
lic. In the course of my own work I have been asked
many times by old prospectors and by officials of min-
ing companies just what are the requirements for
patenting mineral claims. Probably most of these peo-
ple knew the approximate wording of the law, but they
did not know the interpretation placed upon it by the
courts. Some were inclined to emphasize the mineral
discovery requirements, thinking it necessary to have
pay ore. while others were inclined to emphasize the
good faith requirements, believing that properly per-
formed assessment work was sufficient evidence that
the prospector believed he had mineral in sight or in
reach and that such a condition should pass for a min-
eral discovery. There is little doubt that in some
localities custom bad condoned the latter situation be-
fore examinations were made by the Government: in
fact, in some localities the mineral discovery require-
ments of the federal statutes were overlooked entirely
by locators, and naturally when the Government in-
augurated the system of examining claims which came

JuU 1^ I'll

MIMM. AM' S< II \ III |. I-KI SS

•I'll . B

itteinpling to obtain patrol to land
with i t mineral value, but with very app

Valut

nth but .hi! not kiinH the actual requirements
law.

Under t: law there are certain Injustices ap

parent, the moal conapicuoua one perhapa being under
the placer law, which makes it possible for an am
linn or company 3 iple to locate and hold legally
• doing the ^mx- amount of bbwmiiiiiiiI work re-
quired of a prospector on his 20 juris, which is the
maximum area he can locate as one claim. If he wishes
tn i.M-itti- 160 ni-n-s. he mils) make s locationi and do

rorth i>r work, whereas if he is dish si be "ill

160 acres a> one claim bj making use of 7 dummy
locators, thus saving $700 worth <>t' work, the labor of
locating 7 claims and the expense of recording them.
Such a law encourages crookedness, and what is the

for SUch provisions ' Why not ivi|i>iiv .■ksoii
Worth nf work of the 7 locators mi tin' 1' I am

unable t" answer the query to my own satisfaction. The
same principle was not carried out with regard to lode
local

Another injustice sometimes arises in cases where a
|i,Mir prospector has a valuable location i>n which he has
done his wnrk honestly. The large company or indivi-
dual with money overlaps the prospector's location and
applies for patent The prospector is npelled to re-
sort to law for protection. Tn be sun-, the deputy min-
eral surveyor Bhould exclude the conflict when it is an
earlier valid location, but he is not always in possession
of the facts and may take the statement of his client,

sine,' iii sneh eases he ran hardly collect fees for time

spent in such investigation A valid mineral location
should be automatically protected by the tinwrnment
against sneh encroachments, for it often happens that
the ground is lost to the prospector simply because he
cannot afford to carry It is case into court.

I believe an effective method of protection could be
brought about by requiring every mineral location to
In- examined at the expense of the Government within
a reasonable time after location, as to conflicts if any.
location work, marking upon the ground, and roughly
as to its dimensions and relation to nearby public monu-
ments, aeeepted surveys, or other fixed landmark. This
work would require a competent man in each important
public-land mining district who would do the field work
and keep complete accessible records of his work. This
would also prevent another evil, which has flourished
in some localities, that of staking out oversized claims.
It probably would not be necessary at this time to
examine the claim as to mineral discovery (unless the
claim is made larger than at present!, but the examiner
should be in possession of any facts which tend to prove
fraud on the locator's part. Sneh an examiner would

1m- in a poaitioi ..i> an.| . u|

claims whi I i.\ neighboring L

ither at time ot
making application for patent or earliei
should an-- The Government would always be in
posscwiiiiu ni ii in whether the locations were

fraudulent or valid and Mould place itself In ■ position
i" protect .ii.. tiveU the ponr locator. It would
decrease largely the fraudulent locations and save in

Uiih the Gover ml and individuals a great deal of

litigation, all of which is a heavy expense mid too often
oreatea hard feeling. By thus Dipping the trouble in

the bud I believe that I he ( Jnverii incut wuuld do itaelf

and its citizens, and particular!) the mining induatrj ■
great service. It would have a tendency to stimulate
proa] ting by men with the physical ami menial equip

meiit for BUCh work. If such a federal office were

created it would be a good place to r -d all mineral

locations mad.- in the district, thus supplying the Qoi
eminent with such records.

PaOTBcriON kor Locators

In a lew mining localities, where it is in most instances

impossible t ;ike a mineral discovery at an expense

500, some provision should be made to protect n
locator while searching for ore. In such districts ore is
found only at depth and it is unreasonable to require a
mineral discovery at the time a claim is located. I be-
lieve such districts should be set aside by the Interior
Department and a plan devised for allowing prospectors
to make a limited number of locations under adequate
protection for a fixed period which would be long enough
to allow mineral discovery to be made. In return for
such protection the prospector should consent to do a
reasonable amount of properly conducted work on each

locati »ach year, sneh work to be done with the view

of making a mineral discovery at the earliest time con-
sistent with good work. The Government should have
a competent engineer in the district, whose duty it would
be to supervise for the Government's interest the locat-
ing and developing of these protected claims. As soon
as a mineral discovery is made on any claim it should be
alienated from the protected area and subject to the
general mining laws iii force on the public domain at
large. At the ti the mining laws were made by Con-
gress no provision was made for such a condition, and
it seems only proper now that such a condition is known
to exist that the Government should make adequate
provision to meet the situation.

Under the Act of January 22, 1880, (26 Stat, til the

locator is allowed the full calendar year next SUC( ling

the one in which the location is made within which to
perform first assessment work, that is to say, if a loca-
tion is made in .January ]!I14. the claimant has until
December HI. 1015. a period of two years (Mills v..
Fletcher, 34 Pac. fi:;7'. in which to do assessment work
for one year. By relocating the ground every two years
a valuable piece of ground can be tied up indefinitely

102

MINING AND SCIENTIFIC PRESS

.lulv 18, 1DH

and put beyond the reach of locators in good faith, or
even of the Government itself. This statute is notor-
iously abused by that class of men who make fraudulent
mineral locations on ground valuable for agriculture,
water power, townsite, right of way. etc., and thereby

make in. end of trouble. I believe this law should be

stricken from the statute hooks and another substituted,
if necessary, which would make it accessary to perform

+ 100 worth of assessment work not later than one year

from the date of location, or in ease of failure to do so.
automatically proclaim the location Legally abandoned
Ami in ease a claim heeouies automatically abandoned

should be a period of at least one year between
the date of automatic abandonment and the date on
which it might be relocated by the same person or

company.

The Door Thbown Open to Fraud

It has been possible in the past to locate land valua-
ble for timber, agriculture, water-power, or townsite.
as mineral claims, and even to patent such a group with-
out having any indications of valuable mineral in sight.
because the Government has not supplied the means of
enforcing its laws. It is possible, even now, to do so on
public lands outside of the national forests, for only a
fraction of such claims are ever examined by Govern-
ment officers to determine their mineral or non-mineral
character. Such examination has been carried on with-
in the forests and the records show that hundreds of
claims have been canceled, after a hearing was had.
because of lack of compliance with the Federal statutes.
It is true that a good proportion of such canceled claims
were protection claims but many eases of absolute fraud
have been brought to light. A perusal of pages 5 to 10
of the United States forester's report for 1912-13 will
leave no doubt as to this fact, and to my mind is a very
eloquent argument for the examination of all mineral
claims for which patent is asked. As to the protection
claims, there is a strong argument in favor of the miner.
sufficient in many cases to justify the conclusion that
there is a defect in the law as it now stands.

The Size of the Lode Claim

In order to avoid the necessity — for it is often a real
necessity — of making these blanket locations around a
discovery, I propose the enlargement of the lode claim
from 20 acres to say 40, in the form of square or
rectangular tracts, laid out by legal subdivision of the
public survey. Such a change would make the claitn
large enough for protection against speculative locators
whose policy it is to take advantage of the real dis-
coverer's labor, and at the same time would automatical-
ly do away with the necessity of extralateral rights, thus
forestalling for the future the greatest cause for litiga-
tion the mining industry has had to cope with. This
would automatically stop much of the injustice perpe-
trated by the wealthy mine owner upon the prospector
and miner, under the guise of the present apex law.

In case the size of the claim is increased it might be
wise to require $100 worth of work for each 20 acres,
or fraction thereof, in the claim and to enforce the dis-
covery requirements vrvy strictly in order to prevent
tying up of large areas of country* I realize that this
is touching upon dangerous ground, but it is presented
Only as a suggested way out of a real difficulty.

In this argument, for which I am personally. responsi-
ble and act in no manner as a spokesman I'm- any Gov-
ernment bureau, 1 have proceeded upon the assumption

that criticism has very little or no constructive value
unless it is hacked by suggestions for a cure. In fact
I recognize that it is absolutely impossible to make a set
of mining laws which will suit every one.

Right here I can do no better than to quote from the
'Twentieth Annual Report' of the Bureau of Mines of
Ontario, Vol. XX. Part 1. p. 270. Hill, where mine
commissioner S. Price lias so aptly expressed the situa-
tion when he says, speaking of mining laws in general :
* Probably no law upon the subject anywhere
has ever had the unanimous approval of those working
under it. for individual opinions and points of view
differ even more widely than the laws. Poor prospectors
and rich capitalists, men with little and those with large
experience, those who want to find something to develop
and those who desire merely to get something to sell,
the miner who wants to work the land for the valuable
mineral he expects it to produce and the speculator who
desires only to hold it while neighboring development
increases its value, can hardly he expected to view" mat-
ters in the same light or to desire the same kind of a
law; nor is the interest of any of them always identical
with the paramount interest of the community as a
whole to which the property in the first place be-
longs. • • •"

In the above argument I have had in mind justice to

the i r prospector, the interests of the mining industry

at large and that of the country as a whole. The diffi-
culties in making and administering mining laws are
largely brought about by unscrupulous locators and
stock venders who are 'in the game for what there is in
it,' and I freely acknowledge that such do not belong to
the mining fraternity proper. If everyone were honest
there would be very little difficulty under the present
law. but human beings are still human and to some ex-
tent selfish, all of which requires that the central gov-
ernment should take a strong hand in the administration
of its public land laws in the interests of common
justice.

It Is a Curious Fact that the United States, with
enormous deposits of iron ore, depends on deposits in
foreign countries for most of its supply of the metals
used as alloys in the manufacture of steel, such as
manganese, nickel, chromium, and vanadium, according
to the U. S. Geological Survey. The production of
ferromanganese, spiegeleisen, and other alloys in 1913
amounted to 226.475 tons, against 128.147 tons in 1912.

Jul) i" l'H

\tl\IV. \M> m II Mil |. |>H

Hill "V III.' -VI Mils I III I K I'owlll lilWMON.

By E. E. MURJA

Probably nowhere in the world has mining on such
an immense wale been undertaken by so many com-
panies as in the Juneau Alaska district ; so therefore
a review of the present status of the Alaska Qastineau
property, held by the Alaska Gold Mines Co., may be
nt' interest t'> mining men generally. The Company has
three miles "f claims along an orebody varying in
width from To to MM) ft., and carrying from $1.50 to $2
per ton in gold, with a net profit of from 50 to 75 cents
per t"n because of the large-scale production. The
mining work of the Company is conducted from Sheep
Creek, four miles south of Juneau, and the work on
the power project is on Salmon creek, four miles north
of Juneau. The main offices of the Company are at
Juneau, with I'.. L. Thane in charge.

Mink DEVELOPMENT

I'll.- underground development up to the present time
includes the Alexander adit, known as tunnel No. 10,
at the Perseverance mine in Silver Bow basin, which
lias been extended and is now ."iiiOO ft. long. Cross
CUtS arc being ilriven from this and from the main adit.

known as the Sheep creek tunnel, which com ts the

Perseverance workings with the millsite overlooking
Gastineau channel at the mouth of Slice]) creek. A
vertical three-COmpartment shaft. 1">44 ft. in depth, con-
nects with the 8 by 10 adit having a length of 9178 ft.
The work on the adit was started in November 1912 and
was completed April 1, 1914. During the last six
months a monthly rate of 600 ft. was maintained. Three
shifts were worked on the honus system in completing
the tunnel. Thirty-three feet were made in a single
day during November.

An electric tram I 1 4 miles long connects the portal

Of the adit with the coarse-crushing plant on Sheep

creek. The present gage of 24 in. is to be changed to

36 in., and the storage-hattery locomotives will be re

placed with the trolley system. All the mining will

THE OLD PEKSEVERA.NCE .MILL.

be conducted through the main adit, and ore hauled
to the reduction plant in 300-ton trainloads.

Reduction Plant

The first unit of the reduction plant of the Company
prohably will he completed by January 1. 1915. The
coarse-crushing plant, situated on the hill 700 ft. above
the beach, is almost completed. The foundation and

1(14

MINING AND SCIENTIFIC PRESS

Julv 18, 1914

Bteel framework are completed and the machinery is
now being installed. The ore falls into ondergro
storage-bins and is hauled by a backet line through an
underground tunnel, 300 ft. loug, to the fine-crushing

plant. Tin ncrete foundations for the fine-crushing

plant are neatly completed, and the steel for the frame-
work is all on the ground. The sides of the building
will be of galvanized iron. After a preliminary sort-
ing, the ore is crushed by Hardinge conical mills, then
taken over amalgam tables to the concentrating depart-
ment. Wilfley tables and Garfield roll mills will pre-
pare the concentrate for the re-treatment plant. Ex-
periments with a view to cyanidation of concentrates
are still in progress. The first unit will have a capacity
of 6000 tons daily.

Machine-shops, sawmill, six bunk-houses, mess-house.
office buildings, and dock have been built on the beach.
immediately below the reduction plant, the floor of which
is 300 ft. above sea-level.

Power

The Salmon creek power project will be completed by
July 25, 1914, according to statements of the engineers
in charge. The first concrete for the dam, which is of
the variable radius arch type, was poured July 25, 1913.
The dam will have a height when completed of 177 ft.,
with a length along the crest of 650 ft., and the thickness
at the base will be 47 ft. On June 25, 26 ft. remained
to be built. Following the completion of power-plant
No. 1, which is on the beach at the mouth of Salmon
creek, in 1912. a 4^-mile tramway was built and build-
ing erected for work on power-plant No. 2 and the
dam. Power-plant No. 1 has one unit of 1500 kw. in-
stalled. The second unit will be installed in the spring
mI' 1915. The plant is closed down for repairs al pres-
ent. Power-plant No. 2, with two generating units of
1500 kw. each, is completed, and is furnishing all tin-
power fur present operations of the Company. The
beach at Salmon creek is being bulkheaded to protect
tin' buildings and road from tide action. A concrete
tail-race will be built.

In order to handle cement and supplies with dispatch.
a special dock was built, with a highly practical apron
track by which loaded cars of cement can be moved
from the barges directly upon the tramway. Barges
hearing fifteen 3-ton ears are unloaded and empty ears
put on board in 40 minutes. Three hundred and five
tons oi cement is the record amount handled during a
single day. A 2000-ft. cable tramway raises the cars
300 ft. to the steam road leading to the dam-site.

When complete, the dam will impound 20,000 acre-
feet of water. Above the dam. in what will be the
reservoir area, the quarry, gravel, and washing plants
are situated. Belt conveyors carry gravel, sand, and
cement to two mixers with a daily capacity of 7oi> yd.

As much as 860 yd. has 1 d poured in 24 hours. The

concrete is hoisted in a 2-compartment tower 75 ft.
high, shown in the halftone, for distribution. A ditch
3850 ft. long is being built to drain the north slope

of the basin below the dam into the reservoir. The
construction camp at the dam is roomy, clean, and well
drained ; shower baths, toilets, and other conveniences
are provided.

Computing the width of the ore at 70 ft., the orebody

1 M

up, '

^v ;

k\ Jt *

^ HA

INTERIOR OF POWER-PLANT NO 2, ALASKA GASTINEAU COMPANY.

above the main adit is estimated to contain 50,000,000
tons, assuring operation of the mill for many years to
come.

Cosfts aft ftfin® Gire&ft Fmgall Mine

< ire extracted from the Great Fingall mine, Western
Australia, is of a free-milling class, which is stamped,
concentrated, concentrate roasted and cyanided, sand
leached, and slime treated in a vacuum-filter. It was
mined down to the No. 18 level, a depth of 2480 ft. on
the incline. Costs per ton were as follows:

Ordinary development. . .$0.91
Special development.... 0.99
Mining:

Breaking ore $1.25

Filling stopes 0.12

Tramming and hoisting 1.52

Total mining $2.89

Treatment:

Crushing $0.15

Transport > 0.04

Stamping 0.62

Concentrating 0.04

Concentrate treatment. 0.07
Grinding sand 0.32

Leaching sand $0.22

Filtering slime 0.24

Pptn. and clean-up 0.08

Disposal of residue... 0.18
Treating custom ore
and concentrate .... 0.12

Total treatment $2.08

Less custom account.... 0.19

Net treatment cost... $1.89

Bullion expenses 0.06

General expenses 0.62

Grand total $7.36

Crude Barytes Production of the United States in
1913 was 45.298 tons worth $156,275, ail increase of 7820
tons and .$2962 compared with the yield in 1912. Most
of this mineral is used as a pigment in the manufacture
of mixed paints.

Coke Production of New Mexico in 1913 was 4G7.!)45
short tons, valued at $1 .548. 536, an increase of 54,039
tons and $191,590 over 1912. The coke is from the Raton
field coal.

!•>!»

MINING AND * It Mil U I'M

■llfllill-

Workman's Compensation

The Editor:

sir While "ii a recent trip through Sierra and Ne-
vada counties, I noticed that the workman's compensa-
tion law is not altogether popular. The general com-
mint is. that it is hard on the small mine owner, <>m-
man who is developing a prospect, and
who says he can't afford the extra tax.
is employing only unmarried nun. An-
other, has leased his mine and mill to
the men, giving them a bonus of ten per
of the net; above wages and sup-
plies. The lease runs only 30 days.
being signed over again at the begin-
ning of each month. Be says this works
very well. The men are more saving
with supplies, and the increase in the
amount of work done, more than repays
tin.' ten per cent. But I doubt it' this
would evade the law in case of an acci-
dent. Being the owner, he is probably
just as responsible as the man who lets
a contract.

Insurance is a good thing, — for tin-
workman. — and good for the owner, as
protection against possible damage suit.

But it is not fair that the mine owner
should stand the whole expense when
tin- miner is the chief beneficiary. Lei
the mine owner pay one-third of the tax. and the miner
two-thirds. It ran lie deducted from his monthly pay-
check, just as some of the mining companies used to
hold out a dollar per month from each check for the
services of the doctor.

Geo E. Bigeluw.
Brown Valley, California, June 28.

necting drill-holes No, l. s. 18, ami 16. Thi

corner drill-holes, taken individually, would he
representative of only ' , tin- ana of thai of an ii
drill hole, say No, ■"> or No. 7. Likewise tin- holes No. L',
B, 13, 12, ii. ami 11 would hi- representative of only ':.

the area represented hy holes No. ."i or 7.

The computations, then, to arrive at tin- correel

mag

urns

The Editor:

Sir— In Mr. Deeoto's article, I can see where lie can
prove his contention that no part area of a given area
of dredging ground is representative of the total area,
as regards its value, but it does not seem to me that
the correct value per cubic yard of his theoretical plot
has been arrived at by his method of computing the
same.

I get from his article that the dredging operations
are limited, in this theoretical case, by the lines con-

DIAORAM SHOWING Portion or lilill.l.-llol.l.s.

value of the area hounded by lines connecting drill-
holes No. 1. 3, 8, and ti, would be:

1 130 X (40 X %) or 10.0 = 1300

2 35 X (30 X &)orl5.0= 525

3 60. X ( 20 X Vi ) or 5.0 = 300

4 50 X (20 X 1 ) or 20.0 = 1000

5 40 X (20 X 1 ) or 20.0 = 800

R 50 X (30 X 14) Or 7.5= 876

7 60 X (20 X UO or 10.0 = 600

S 42 X (30 X U) or 7.5= 315

95.0 5215

This gives the value per cubic yard for this part
area of 54.89c. In a like manner, the total area gives
a value per cubic yard of 28.76 cents. 1

To get a value of 37.69c. per cubic yard as calcu-
lated by Mr. Decoto, it is obvious that the ground
would have to hr dredged to take in the area enclosed

'This gives a difference of 8.93c. per cubic yard, or 31%,
which might in some close dredging propositions change a
calculated profit to a loss.

106

MINING AND SCIENTIFIC PRES3

July is. l!iu

by the outside boundary lines shown in the sketch. It
imjiht be poedable for a dredge to work such a boundary,
but it is improbable that the operations would be so con-
ducted.

E. Bryant Thorxhu.l.
Cobalt. Ontario, May 20.

Tin- Editor:

Sir — I have just b reading the article 'Revision of

tin- Mining Law,' by Frank P. Davis, in your June 13,
1914, issue. I have given this subject, particularly the
Location anil title of quartz mining claims no little
thought and study since the question of a 'Mining
Code Commission' has been agitated, and I give Mr.
I>avis ere, lit I'm- advancing some good ideas in his fifteen
different suggestions. Taking them in the same numer-
ical older. I will present s e of my views of the ques-
tion, in a brief manner.

1. All mining locations to be made only by citizens of
the United states.

2. Size of a full quartz mining claim to be 1320 ft.
on a side (40 acres] and located relative to the legal
subdivisions, if surveyed. In any event, all boundary
lines to lie north and south ami east ami west.

:;. Location monument, with a legible notice, a true
copj of the record, posted at the discovery work.

1. Boundaries to be plainly marked with stakes, or
monuments, on all sides of the claim, so that thej can be
easily traced. Corners established with Large prominent
posts (6 in. square or more set in mound of stone, at

least 4 ft. above ground, giving Dame, number, and
identity of the corner, with right to fence but not to

encroach on public trails or highways.

.">. Discovery work to consist of a shaft, adit, or open
cut. not less than HI ft. dec]), and more if necessary, to

expose the vein in place, and it must show a vein, to be a
legal location. This work may he done at any point
within the boundary id' the claim, at the option of the
locator, regardless of any 'centre line.' The position of
this discovery work, with relation to the boundaries,
must be accurately Located and appear in the record, by
giving the distance from all four lines of the exterior
boundary of the claim.

fi. Have Location notice describe the location, as far as
possible, by legal subdivisions, giving section, township,
range, etc., so that it may be accurately located from
the field notes of record. If it cannot be located and
platted from the record it is not a valid location.

7. No extralateral rights, but to own all mineral with-
in its vertical boundary lines.

8. Claim must be recorded within 30 days from the
date of discovery, at which time the discoverer must post
a temporary notice, bearing date of discovery, and de-
claring bis intention to locate and record.

|i. No overlapping of claims.

Hi. Fix a penalty for fraudulent dating. If the title
to a claim has lapsed the original owner can only secure

it again by paying up bis back tax, as prescribed below,
and not then if it has been located by others.

11. Let the first day of January be the date from
which all locations are fixed, relative to the tax. etc., so
there will be no confusion of dates. If a claim is located
in 1914 the tax must be paid in 1915 or it is subject to

Local ion by other parties,

12. To pay a yearly tax. until patented, of a fixed
amount, on each location, in lieu of the assessment now
required. Said tax to In' due in the second year of the
location. This tax receipt to be proof of non-abandon-
ment. .Make all unpatented claims subject to this tax.

13. Proceed to patent under the same rules and regu-
lations that exist today. Get your survey number and
a U. S. deputy mineral surveyor to mark and establish
the corners. It is absolutely essential to have these
monuments correctly fixed, particularly so if it is a
patented claim.

14. Accept no agricultural filings in known mineral
area, or reserve all mineral rights, with surface restric-
tions, so they can be prospected. Fix a penalty for post-
ing 'scare notices.' such as ''No trespassing on these
premises" on territory that is not absolutely owned.
This keeps prospectors off.

15. If the above suggestions were adopted, I can see
no reason why claims should not be located by proxy or
power-of -attorney.

I believe in giving the prospector and locator every

possible chance, but there are some- of them who abuse
their rights, which is made possible by the present laws.
They gel 'hoggish' or 'dog-in-the-manger' like. They
won't develop their locations, in fact, they can't, nor
will they let any other prospector in. I know of a case
and I dare say the same condition prevails, to some ex-
ii ■nt. in every mining camp in the West, where a pros-
pector has Llli claims, and he has held them for years.
Now. it is a physical and financial impossibility for him
to do this assessment work legally, yet be keeps other

pros] tors away. In many cases he does not make a

pretext of doing the assessment, but gets very busy at
midnight of December 31, posting new location notices,
in his own and other people's names. I think my sug-
gestion in paragraph 12 would remedy this.

If a person should discover something near these '20
claims' it would be impossible for him to determine
whether or not he was trespassing on one of them. The
description, in the location certificate is so meager, in-
definite, and consequently flexible, that it would be im-
possible to locate the position of any one of them on the
ground. The course is generally given as northeast and
southwest. If there is any tie at all, it is to a pine tree
or a log cabin that has long since burned down. Hence
my suggestion in paragraphs 4 and 6.

In paragraph 2 I suggest the size of a quartz claim to
be 1320 ft. square. I do not think this is any too large,
and it would be very easy for a prospector to locate it,
so there would be no excuse for his not having a valid
location. For example, he locates the S.E. ] 4 of the S.E.
i , of Sec. 16, T. 19, X. B. 6 E.. M.D.M., etc. Or, if the

I'll

MIN1NC AM) m II MM || I'KESS

j subdivii
■IT, from or lo

iiortli
us point, and oeseribe il as
followi Beginning at cornet No l whence tl
B • ■ '■■ in i: 1000 •■

\\ 1330 fl t rn.-r No.

:t. tl>' di rNo i. thence B

corner No. 1. the place of beginning. Suppose half of
'ii>ii 16 an. I ihr eolith half in -

would be described in the aame ma r. only the

rting point would l»- on a aide line inataad of ■ conn r,

Beginning «t a point 1«hm< ft \y. of the 8.E. corner

. thenoe \ 61 corner No. 1. and

mer No. 4, th< Q ft to the plac '

beginning. These would be valid locations, affixed to and
made part and panel >>f the public survey. It is a won
der iii me that something after this Fashion was nut
adopted long ago. What is the public survey made for,
it' not just for tliis purpose; to locate and identify poei
lively different tracts of landl

It would be possible to locate any claim desired, in this
manner, so that it would cover the vein apex for the full

distance. That is reason for leaving the position of

the location work optional with the locator,.as suggested
in paragraph 5. Another reason for this is so the locator

may tak.- im moderation the dip of the vein, relative

to the vertical ride lines, and locate his surface ground

irdingly.

I have made particular mention of sunn- of the features

of our mining code, and, in my opinion, some of tin-

worst things the prospector of today has to contend with,

ea] ially in the newer camps, where so many men make

a practi f rushing in and staking all the ground pos-

sible and holding it for 60 or 90 days, or even longer,
by re-staking it. without doing a tap, much to the detri-
ment of the camp and ;> hardship to those who arrive
later.

In many places I have even seen these stakes stuck
in the snow. Paragraphs s ami in are suggested as a
remedy for this fault Ami I believe if the time limit
for recording was cut to 10 .lays, instead of 30, it would
be still better. The law giving the locator 90 days to do
his discovery work. Burvey, and record, in a way. was
necessary, as it required some time to trace out the
apex of a vein before it could lie covered intelligently
with the location. Rut with tin- claim square, as sug-
gested, this would nol be necessary, and a 10-ft. hole
could be sunk in any ground in 10 days. This would
mean that the stake hog' or 'ground hog,' as he might
well be called, would have to sret busy 'throwing dirt,'
instead of trying to stake the whole landscape as a
speculative enterprise.

As has been sujfffsted, 'now is the time to holler.'
Dob i wait until the drill strikes the bottom of the shaft,
and then shout. "Look out below!'

Clarence K. Cot-tot.

Forbestown, California, June 18.

What is the Matter With Prospecting?

Th.- Bditori
sir Prom the point ..• ivelj

ted in examining prospeeta with any prom I

WOUld Mat.- that in my opinion tl In. f difficulty the

prospector encounters is Interposed by himself, in the

form of prices and term are often v.

that an examination is uol justified, even on the basis

of the rosy statements made. It' the risk of tl \

in examination is taken, the matter usually
Koils down to the question of putting up .ash for the
pin ilege of putting up more.
When trad.- is quiet in real estate, railroad bonds,

winter wheat " r mining pros] ts, there is alwa;

underlying reason, namely, that sellers are asking more
than the buyers can pay. The conundrum is not a
difficult one from an economic .standpoint. If the quea
tion were put in another form, namely: How shall we

Btimulate prospecting 1 I WOUld say by malting known

pros] ts attractive to tl peratora.

1 1 I were a prospector, and had a prospective moun-
tain of orr. exposed at one or two points, and were
sure of being able to find these points again, I would
request an operator to examine it ami offer aim a

y.ar of develo] nt. giving him an option to purchase

at from $1000 to $10,000, according to circumstances,
this price to be paid within three years at a rate of
nol loss than $25 per month. As soon as this deal
was closed, and it would nol take long if the one or
two points of ore could really be found again, I would
H ii n t for the next available mountain of ore and en-
deavor to close in duo course a similar deal if siu-h
mountain were available. If my prospects were really

interesting. I would hope to get a raise in my ii ie

of $25 per month once or twice a year, and come into
an occasional bonus when some of the prospects proved
to 1»' more than interest inp.

If I could not earn a good living on this basis, I
would go into some other business, and from a safe

distance, would amend mj ntribution to this topic.

I would say it was not because prospects were held
too high to bo interesting to the buyer, that the busi-
ness of prospecting was dying, but because there were
not enough prospects to justify the search for them.

Unless more prospects are offered on terms which
will justify examination and development, the art of
prospecting will perish, aud a post-mortem examina-
tion will probably show that it died of wilful starva-
tion in sight of food.

Operator
San Francisco, May 20.

Load factor in electric power being supplied to 115

classes of industries by the Pacific Gas & Electric Co.
of California is 59 per cent.

Coke Production of Kentucky in 191tf was :S17,084
tons.

108

MIXING AND SCIENTIFIC PRESS

July 18. 1914

COMCEMTEATES

Must of these ore in reply to questions received hy mail. Our renders are invited '■• ask quettions and give
ation dealing with the practice of mining, milling, and melting.

Im>i v. Russia, and Brazil produce 90% of the world's
supply of manganese ores.

'Wireless' telephony is now used in the Lindsay col-
liery of the Fife Coal Co. in Scotland. Current is car-
ried through the rails in the drifts. Four receivers
weighing 50 lh. each have been installed, and each in-
strument has a battery of four cells producing current
at l")-volt pressure.

.\ process for making pressure-sustaining coke con-
taining a minimum of detrimental sulphur constituents,
from coal, consists of adding to the coal before coking
a phosphorous compound of lime, and coking said mixed
mass. The process has been devised by Leon Franck, of
Luxemburg, Germany.

PLUNGER PUMPS are made with several important ad-
juncts to permit of better operation, which may be de-
scribed as follows: An air vessel, charged with air. which
acts as a reservoir of energy. During the discharge
stroke the air in the vessel is compressed. The energy,
which is stored up in the compressed air, is given out
again during the pause which takes place when the
pump is changing the direction of its stroke. The water
in the delivery column is thus kept in motion during
the pause, and shock to the pump is reduced. The power
required at the beginning of the stroke is also reduced
as the force of inertia is eliminated, due to the water
being kept in motion. Sniffing cocks are used where
the suction pipes are too small. If such is the case the
water in the suction pipes rushes into the pump at a
high velocity. This prevents the suction valve closing
until the ram has made part of its stroke, and conse-
quently causes a considerable amount of shock to the
pump when the two columns of water come into contact.
By using snifting cocks a certain quantity of air is ad-
mitted at each stroke. The air acts as a cushion to the
water, and allows the valve to close at its proper time.
thus reducing shock to the pump. The suction valve
prevents the water from being forced back into the
suction column during the discharge stroke of the pump.
The delivery valve holds the water in the delivery
column, and prevents it running back into the working
barrel during the suction stroke of the pump.

Gas pumps for lifting water are coming into more
general use. The Humphrey system, as installed to
pump 180,000,000 gal. of water per day for London,
with a fuel consumption not exceeding 1.1 lb. of anthra-
cite coal per pump-horse-power hour, was described in
the Press of June 28, 1913. Another Humphrey plant

is to be erected at Mex, three miles west from Alexan-
dria, for the Egyptian government. Certain lands in
the district have I Ome 'water-logged.' and it has been

decided t<> drain Lake Mariut, having an area of 50,000
acres and .'S ft. deep, and reclaim the area under water.
To do this, the hike water is to be pumped into the
Mediterranean Sea, a lift of from 19 to 20 ft. from a
drainage canal, over a narrow protecting ridge on the
seacoast. Ten Humphrey pumps, eight of which will
be sufficient to lift 792.000,000 gal. per day, are being
made by Messrs. Beardmore and Messrs. Brown. Boveri
& Co. Each machine will have a combustion chamber
8 ft. 8 in. diameter by 14 ft. high. The valve-box will
be the same diameter and 7 ft. high, and is to have 100
valves of the hinge type, which will close on any ob-
struction without straining the hinges. The 'play-pipe'
of the pump will slope upward so as to deliver water
at the required elevation in the discharge basin. The
pumps are started by admitting into the combustion
chamber a mixture of gas and air. The Power Gas
Corporation will supply an anthracite Mond plant capa-
ble of gasifying 44 tons per day, consisting of nine 6-
ft. producers. The guaranteed consumption is 1.15 lb.
coal per horse-power. Two Venturi meters will measure
the water delivered from' the pumps.

A DREDGE may be constructed to handle so many cubic
yards of gravel per day, yet this capacity is entirely
dependent on the skill of the winchman. He has con-
trol of the motors which drive the winches for side-lines,

CONTROL LEVERS UN YUBA NO. 14 DREDGE.

spuds, and other gear; also the main motor for driving
the bucket-line, and lowering and raising the digging
ladder. In his department, at the top of the dredge, is
a switchboard and a large number of levers, by which
he is able to control all operations of swinging the boat,
stepping ahead, and digging gravel. The accompany-
ing cut shows the levers on Yuba No. 14 dredge, Cali-
fornia.

l«, l'-ll

MIMV. AM) S< II Mil U I'M SS

tog

REVIEW OF MIMING

H 18HIXGTOX, D I

no uxm kwua-

ii..s \\ ' «Miii ikk Tin- l'i in H mi.in. 1 1- Vim Explained
hi i hi Dim roi • •> ran Bi m I

i.m not iiron'il Indulgent thin war I" the :it
tempt of the i B Geological Burr*] to proenre so extra
| ior ill.' preparation ol the report or the 'Mineral it.

i of the United S lowing only %""•. ' for the

eomlni fiscal year as hi run ion ol 185, '

h.i.i been aaked bj the .itr. Smith. "Under

ilu- H. in.' Mr. Smith tolil the House Committee on Appropna
lions, "there la taken every N,i " • census ol the mineral pro-
Auction of the whole country, which amount* .it the preaeni

time to aomethlnf over IS, 1,000." Mr. smith was asked

how this census Is obtained and thereby revealed some inter-
esting ilao the Implied plans for the future by the
Burvej on ibis census, "it is done," he said, "by correspond-

ind a certain amount ol visiting the different mining
districts and especially ol Western mining districts. The
tatement ol the mineral production
ol each year, by reason of the fact thai we have a permanent
that is in almost constant correspondence with the
Individual producers. It Is not like waiting 10 years and
then getting in touch with the industry, for our statisticians
are in constant touch with them. We believe thai by the
various .hecks we use that is, by compiling not only the
returns ol the Individual producers In the Western
hut by using the returns of the smelters to which thi
have ind, then also, by using the double cluck

of the statistics of the shipments which arc furnish
the different railroad companies, that we have the t rut li
of It. It may be surprising, but there have been Instances
where individual producers several years afterward have
asked us what their production was for certain years, getting
this from our hooks, and In Borne cases the return was
based not so much on what the man might send in himself,
but on what we learned through railroad shipments at the
particular siding where his ore was loaded. We are more
and more giving the public, or are trying to give the public.
a fair statement ol the mineral production of the preceding
year on or near the first of January, that being the time
that a good many people Interested in the subject desire the
statistics. We make these preliminary estimates, which are
usually based on what we know of the eleven months prev-
ious, and then we estimate for the twelfth month. Then
we are also trying to give to the public before July 1 the
complete report, which gives the totals, including not only
the state totals, but the county totals. Our printed report is
issued first In the form of separate chapters which are de-
voted to particular products, like iron ore or coal op coke
and later they are assembled in two volumes that make up
the annual report. The work is steadily increasing by reason
of the greater number of producers. I ask for an increase of
$10,000 partly because I am not satisfied with the promptness
with which we can issue the reports under the present appro-
priation, nor am 1 satisfied with the thoroughness with which
we cover the whole field. With the additional money the
telegraph would be more freely used to get the reports from
the producers last to report. Sometimes the expensive part
of a report is the last of one-half of one per cent, that is to
g< t the men who are staying out to send in their returns.

.hi ..(
■ is ineiii ' in- remain!

it i- a decided advantage lo bai rrady

out from thi Burvej office in solicit the rot

ucb visit win keep • producer In Urn
•evert] veers, simply I realises the Im

the Information to the whole Industry. Offices ol the survey
are In Washington, Denver, Ball Lake i'hi, and Ban Fran
The increase would ais.> enable thi

men."

An Inquiry by Congressman M lei ol Wj lug. as to

why the statistics from certain states were lumped, brought
an Im ■ and explanatory answer. The Congressman

■aid he was especially interested in the showing ol Wyoi

Kur instance after an Industry, BUCh as Iron in a state was
heluw .",1111,111111 i.uis per annum thai state was simply lumped in
Its Iron with other stat.s. "If there are only two producers
in a state," explained Mr. Bmlth, "we will lump thai state
with some other state, because by giving tin- total prod
for two producers only we art giving each one ol tliose pro-
ducers Information regarding the tonnage of ins competitor."
"What objection is there to. the people knowing how much the
Colorado Fuel A.- Iron Co. produces at Sunrise, in my state?"
asked Congressman Mondel. "There Is no ob replied

Mr. Smith, "unless the operators prefer to have their returns
confidential. Our returns are usually confidential." Mr.
Smith added that he was able to show thai when Cot
called for the figures of the Individual production ol
corporations supplying the 0. s. Steel Corporatl
producers were in the list. He said that the reports had
practical value moreover as was shown in the case of a
small miner in Missouri who was not satisfied with the
of zinc lie was obtaining and who asked of the Survey the
range of prices for zinc ore. The Survey gave him a report
showing the range of prices month by month, and in his re-
turn letter the miller said that through the report he had
been able to get a considerable advance over the prices that
the ore-buyers had been allowing him. "The big people do

not need this kind of help so much as the small prod l is."

said Mr. Smith. "The large copper mining companies, for
instance, have an agency of their own whereby they keep
monthly statistics. It is of course interesting and gratifying
to us that when they started that system a lew years ago they
came to the Survey and took the geologist who was compiling
the annual statistics on copper for this volume, and he has
since been issuing every month for the benefit of those large
producers the monthly figures on copper production." Mr.
Smith was referring to L. C. Qraton, secretary of the Copper
Producers' Association. Legislation in Congress on mining
continues to make no advance worth noting.

XEW YORK
Business Sm.uiox. — National Coppeb Mink. — Gbansv Con-
solidates, — Hki.nzk Suits. — Intebnational Steam Pump
i o. —Gold Hill Ahaih.

re seems to be something of a new undertone in New
York markets. The past three years have constituted a long
period of depression, a lane that seemed to have no turning.
It would be too much to say that a turn in the lane is In
sight. There are too many railroad receiverships and too
many reorganizations obviously necessary, but there is he-

MINING AND SCIENTIFIC PRESS

July lis. 1914

coming more and more evident a prevalence of the belief that
the worst is known and has been adequately discounted, and
Students of underlying conditions are getting back to thi
tion that the country's tremendous production spells pros-
There are readjustments making and yet to be made.
There are some reformations of spirit yet to be accomplished
in financial circles, the lesson that service is the only work
that deserves reward has been taken to heart by manufactur-
ers, by railroad operators as distinguished from financiers
much more fully than it has by the banking element that is
still feeling the public disapproval. The stagnation of gen-
eral business is typified by the copper situation. Domestic
deliveries have been far below normal during all of the cur-
rent year, while June makes a low record for the year, and
a new low record for the corresponding month of the past six
years. Surplus stocks show an increase, but it is so well
recognized now that the producers are in control that there
is tin attempt to make market capital out of this feature.

At the National mine, in Idaho, while milling operations
are still in the tunlng-up stage, the process used has appar-
ently overcome the question of the cost of oil, having reduced
this from about 6 or 7c. to between 1 and 2c. per ton of ore
treated.

The Granby Consolidated's fiscal year just completed has
been a rather important one for the Company, as the manage-
ment bad in hand the task of putting the Hidden Creek prop-
erty on a producing basis. The Company has maintained its
dividend, but while producing some 22,168,614 lb. of copper
the margin of profit has not been large.

Judging froiu appearances, the Heinze entanglement of
various descriptions will receive 'Gordon knot' treatment in
the near future. Heinze lies at his home ill. United Cop-
per. Stewart .Mining, Ohio Copper, are all in snarls, which,
like the Amalgamated-Heinze fight in Butte, will not be un-
raveled, but will lie cut. Unfortunately for Heinze. lie no
longer has an H. H. Rogers attempting to oust him from
| ropi ni' . s. and the man who once fought the Standard
Oil element in Montana to such a standstill is likely to make
an almost unnoticed exil from the financial world.

The international Steam Pump Co. management has been
attacked by John Drew in a suit alleging the existance of
fraud in the deal by which the Pump company absorbed the
Power & Mining Machinery Co. Quite recently the preferred
dividends on two of the companies controlled by the Pump
company were passed, and there has been some talk of the
possibility of a receiver.

The regulars' down in the financial district have been en-
joying many a good laugh over the publicity recently achieved
by Walter George Newman of Gold Hill notoriety. Gold Hill
was discredited on the New York Curb years ago, and Mr.
Newman likewise. That he should be able to go to Washington
and get officials there interested in his proposition is some-
thing of a triumph of nerve and perseverance. Gold Hill has
been the vehicle of several spectacular market operations on
the Curb, but as a mining operation it has been looked upon as
a joke for years. Investigation into the use of official
stationery resulted in wiping of the whole matter off the
Senate Committee's slate as not important enough to take
up time of the official, but in the meantime, Newman has
reveled in the publicity so acquired. Inasmuch as gold pro-
duction in the Eastern states amounted to but $165.73:: in
1913, apparently Gold Hill is not the centre of a big camp.
These figures given out by U. S. Geological Survey, included
Alabama, Georgia, and South Carolina as well as North
Carolina, within whose borders Gold Hill has its lair.

Extraction at the new Elm Orlu plant at Butte is from 96
in :i7 , of the zinc content of the ore. The Minerals Separa-
tion process is used. Tests are being run at Anaconda on a

50-ton Minerals Separation flotation plant treating slime from
Dorr thickeners. The first results are even better than was
anticipated.

WARREN, IDAI/o
Bio Cbebk mimm. District: Situation, Blevation. GeoloW,
ami Noras n\ nil Moscow, McRae-Goldman, Ri.i. Metal,
Vh tob-Glasgow, Gold Com, imi Pbobiolo minks.

The Big Creek district is situated in Idaho county, about 30
miles from Warren, and liu miles from Thunder City. Minerals
have been found in an area of about 17 miles north and south
by 8 miles east and west, and which contains a large variety
of base and free-milling ores. The district is approached from
the railroad at New Meadow and Thunder City, both of which
are branch terminals, over state wagon roads. Yellow Pine, the
nearest settlement, is in the southern part of the district, and
is reached by wagon road from the Short Line railroad at
Thunder City about 50 miles distant. Approximately 30 miles
of the Yellow Pine road is in the National Forest Reserve, and
is well kept up. This part of the road is well constructed and

, AHMSr£1O

MAC OK IDA liu.

is ideal for automobiles, the grades being easy; but the other
part of the road has been allowed to get in a bad state of re-
pair. At the time these notes were written the county was
doing some extensive repairing. However, in summer time the
stage easily makes the through trip. Elevations of the dis-
trict vary from 7100 to 9400 ft. above sea-level, and is on the
extreme heads of Profile creek, Big creek, and Logan creek,
which has a large amount of timber and water-power in many
places. - Snow in this region begins to fall late in October, and
lies there until May, but most of the heavy mining is done
in the middle of winter. The district, as a whole, is one of the
most picturesque in the state, the innumerable water-falls,
lakes and mountain peaks can be rivaled in few places. Yel-
low Pine is an ideal spot, there being an abundance of yellow
pine saw timber there, with plenty of hunting and fishing and
may some day be a great resort. The northern route into this
mineral belt is over the old South Fork and Warren road
which connects with the Pacific and Idaho Northern railroad
at New Meadow 90 miles distant. This road crosses three high
summits, one of these summits is over 9000 ft. high, and the

I'lll

MIMV. AND S< II Mil l> PH

111

lltiin- thai would be
wr> to pttl it in .h»i- hauling would build ■ good

mad r Mm thr.. -irlct

nt ami thi

ippoitunKJss t<>

illltc. cut b] in'

Which, In

mam cases i left the raliu Handing In

Del The ... .( the lut r<i

erai. »■■ fonnd in numbers ranging from :• ft in thirk

it nuiw Although the rormatlon u em ap by
molted, thi being

in pine*.

Thi' Minium,' In the MoBCOU mil

determined by shallow ««■ ind .1

gold niin 1 from the mors •

til* emu';' ihrougboDl tin' entire width by panning. Tin- d<
posit, on thin group of claims, has been traced for over a mile,
and at cine point ha* I I by 11 cross in t milt

ml has obtained a vertical depth of 150 ft. Two
hare bean drlTen to the rarfaoe, and around these a 'glory
hole' has been opened. The adit dump has been connected by

tramway bung on stumps to a five stamp mill at the
foot of the mountain. With this crude affair tin- owner makes
a good living. The ore is free mllllnj

when It changes Into a rich sulphide. The glory hole has pro-

dueed aboul 1 500 tons of ore that averagt b J" 1 free gold per ton.

.ken from the sulphide horizon in the main

I", in gold and silver. BS9! of the value being gold.

Is teats made on some of the concentrate show an

b] grinding and agitation 8 hours In an

sib eolation. During the past season some well known

engineers sampled this property, and one sampling of 160 ft

of the main an average of $3 per ton: while the zone

wide, of more heavily mineralized ore. Is reported t"

; I 10 per ton.

Continuing north from the Moore bonanza, another large

I ore Is in the McRae-Goldman claims, shown by thick

bands and a network of honeycombed quartz and gangue, 1""

ft. wide b] several hundred feet long, which yields by panning

$5 to $2n gold per ton. This property Is also being developed by

the owners by a cross-cut adit to determine Its width and aver-

llue. The claims are parallel with a large quartz vein

containim: some small streaks of rich ore. which were the

basis of development work and a lot of wildcat stock flotations

in the early history of the camp.

The Red Metal mine, on the west vein, has a large body of
brown-stained qnartz which contains some sulphide and gold
and a small percentage of copper is of great width. On the
hanging wall side of this vein, a "ft. Iiody of silver ore has
opened by two cross-cut adits to a depth of 100 ft. In
. owner extracted five tons of ore from an lS-ln. streak
on the hanging wall, and shipped It to the Tacoma smelter,
return Inu over $200, and 1 oz. gold per ton. The owner is
now taking out a few tons which he expects to ship by parcel
post.

Continuing on the same vein north to the Victor and Glas-
gow L:rou] .s of claims, the ore is similar In character, but the
gold content Is much higher. In some places on these claims
this is up to several ounces per ton. In several openings on
the surface, small amounts of free gold can be obtained by
panning, and from a shaft which is down 25 ft., ore has been
extracted which assayed several ounces per ton. The main
vein on this bench dips about 70° east, and several small string-
ers varying from 1 to 5 ft. are dipping into the main vein at
an angle of about 40°. The Intrusive dikes are numerous
here. The owners of this property are driving a long cross-
cut adit which will cut this vein system over 200 ft. below
the outcrop. Another adit has been driven in the mountain

in* • assays

luelit ■!

Ouln mine li situated on U

vhli b
assaym »eii 1 hi. i,.|„ traverses a glael

and i« ■ ut ii> inn
obtalni ind in nmi,

eroua lUimll streaks which often lie directly parnllrl to String-
ers of slderlte. and » !■ ag Into Hie main

!«..ii ut brown oxide Al lbs fool or thin mountain
gold In round In profitable quanl

The Problglo Mining ins propsrtj consists of rour quartz

claims and mie placer claim, and Is situated das north from
the Victor claims Tha rein on thin property is ico ft. wide,
as proved bj several surface trenches, and gives fair assays in

gold and silver along lis full length. Several rich streaks of

Iver ore have been cul betwei n the enclosing vein malar

lal. varying from 1 t" 12 In wide and assaying high in gold

and silver The Company Is planning m ship several tons or

rich OK this sin r. and will probably build 11 small mill.

By driving an adit in from the foot of the mountain a depth

10 ft can be obtained.

Among other properties of the district, in various stages of
development are tbe Laufer and Davis, Independence, and
Copper Camp.

For cheap power resources the district Is unexcelled, as It

has a number of Bt reams which can be made to develop 60,

hp. at moderate cost, Hig creek. In connection with Profile
gap, affords comparatively easy railroad construction from
the main Salmon river, and up the middle fork to southern
Idaho. The ultimate construction of a branch over the pro-
posed line would come up His creek and open up the entire
district to railway transportation.

DEADWOOD, SOUTH DAKOTA
Activities or tiik Deadwood Business Club in Minim; ami

FoaitiH Hi mi 1 in in; Mining Co*— The Homestake's

New Hoist. — HIDDEN Fobti'nk anii Tro.ian.

In the summer of 1913 the Deadwood Business Club thought
that by developing some promising mining prospect a stimu-
lus might be given to the general mining conditions of the
district. After considerable Investigation on the part of a
special committee appointed for the purpose. It was decided
to do the first work on the Heidelberg property, In the Two Bit
district. The owners offered an attractive proposition, namely.
to give a one-half Interest for $5000. with the agreement that
the money be spent in development. Work was undertaken in
August, 50 citizens of Deadwood each agreeing to contribute
$100 In 10 monthly payments of $10 each. Administration of
the funds and development was turned over to five trustees,
two representing the owners, two representing the subscribers
and these four selecting the fifth member. Payments on sub-
scription commenced August 23, and the final payment was
collected on May 23, last. During the 10 months' operations.
380 ft. of development was done in new ground, besides en-
larging and timbering in a substantial manner the main adit
following the ore-shoot. In the course of the work there was
removed, sorted and shipped 46 tons, dry weight, of ore which
netted above treatment and transportation costs, $371. In
addition a quantity of ore of milling grade was piled on the
dumps. Since this time (May 23) about 70 tons additional has
been shipped, a large proportion of which was in the bins at
that time. The ore is a typical refractory silicious material,
similar to that mined in the Bald Mountain district, occurring
in the upper Cambrian shales. The ore is principally sand
shale enriched from a silicious 'vertical.' This vertical, which
is an average of 1 ft. In width, has a course of north 25° east.
The sand shale is enriched on either side of it for a distance

112

MINING AND SCIENTIFIC PRESS

July 18, 1914

of 1, 2. and 3 ft. It is 1 to 8 ft. thick and above and below it
is lime shale, carrying small gold content. Development along
the vertical discloses its continuity for over 300 ft. Should
this vertical be found to extend downward to the basal Cam-
brian quartzlte, it is quite probable, judging from experience
in other districts, that a considerable body of ore may be
found.

To provide further funds for the exploration of the ore-
body, a corporation with a capitalization of 500.000 shares
of a par value of 25c. each has been organized. Of the capital
one-half, or 250,000 shares, wag issued in payment for the
property, and the balance placed in the treasury. Of the
property purchase stock, one-half, or 125,000 shares, was issued
to the original owners, and the other 125,000 shares equally
divided among the subscribers to the development fund, so that
each man who paid in $100 will receive 2500 shares of stock.
Officers of the Heidelberg Mining Co., the name selected for the
corporation, are: Geo. V. Ayres, president; John Treber, vice-
president; J. Goldberg, treasurer; and W. L. Treber, secretary.
The directors are: N. E. Franklin, president First National
Bank: D. A. McPherson, cashier First National Bank; Geo.
V. Ayres. hardware merchant; J. Goldberg, grocer; N. J.
Thompsen, lumber dealer; A. T. Roos, superintendent of prop-
erty, and John Treber. wholesaler.

For several weeks, steel for the new hoist house and head-
frame at the B. & M. shaft of the Homestake company, has been
arriving, and shortly the first consignment of machinery is
expected to be delivered. Foundation work is well in hand.
It is of massive construction, in some places the cement, rein-
forced with railroad iron bolted into the solid rock, steel cables
and other steel materials, will be over 20 ft. thick. The new
hoisting engine is of the compound-condensing type, built by
the Nordberg firm, and is one of the largest hoisting engines
ever constructed. The machine, after its completion, was
erected in the Nordberg shops, and has been dismantled for
shipment to Lead. Tt in equipped with two clutched reels to
carry rial rope "•* by 7 In. It is designed to handle 12,000 lb.
of ore from a depth of 3200 ft., using skips in balance. It has
a gross weight of over 1,000,000 lb., and will require 24 freight
cars to deliver it in Lead. Steam to operate it will be secured
from a boiler plant close to the C. & N. W. tracks. This plant
will also furnish steam for an electric generating station.
Foundation work on the boiler plant is progressing rapidly,
and it is planned to have the new hoist in full operation by
the end of the present year.

By the purchase of the Hidden Fortune 40-stamp mill, the
Golden Reward company will be enabled to increase its mill-
ing capacity to 400 tons per day. The purchase was made
from the Homestake Mining Co., which came into possession
of the mill a year ago, when it took over the Hidden Fortune
property. The Homestake removed some equipment from the
plant, but the bulk of it passes to the Golden Reward. In the
mill was installed a full complement of cyanide tanks, piping,
crushers, and considerable miscellaneous material. The build-
ing was well constructed, and contains a large amount of lum-
ber which will be used. The Golden Reward company has
already started to remove the plant to its millsite in Dead-
wood. With this addition to the capacity of its milling facili-
ties, the Golden Reward will rank next to the Homestake as a
gold producer in the Black Hills. Numerous improvements in
the plant are under way, including a tube-mill, Trent replacing
tank, classifiers, etc., so that even better work will be done in
the future.

At the Trojan a small streak of sylvanite ore was recently
discovered that gave high assays in gold. Roasted specimens
were as fine as the best Cripple Creek ever produced. The
Company's mill is steadily operating on a good grade of ma-
teria 1 , and shipments are regularfy going forward to sDieltTS.
The Company is in an excellent position financially. It is a
close corporation, and does not publish statements of its earn-
ings, but they are known to be good.

JOHANNESBURG, TEAXSVAAL

Barnato. Albv. axd Consolidated Mines Selection Groups
of Mines. — The Far East Rand. — Diamond Mining in
Soltii Afbica.

The feature of the first week in June here has been the
large number of company meetings held. The companies con-
trolled by the house of Barnato were particularly prominent,
as this is tke only group able to report substantial progress
during the year. The reason for this may be found in the
fact that until a few years ago this was the most backward
of any mining group on the Rand, its properties were be-
coming almost derelict and the most antiquated in equip-
ment. A few years ago, a change in the policy of this group
was made, the Modderfontein Government Areas were secured,
the Langlaagte properties were taken in hand, and some at-
tempt made to bring the other mines more up to the mining
practice of the Rand. The result now is that after the Eck-
stein group, the Barnato is one of the leading mining con-
cerns on the Rand, and with the exception of their oldest
mines, can compare in a satisfactory manner with those of
any other group. There is, for instance, the Van Ryn Deep
mine, which made a working profit of £105.022 during 1913,
the working costs averaging practically $4. SO per ton. Much
better results may be looked for during the current year, as
working costs are declining and the gold recovery likely to
go up to $8.40 per ton. Nearly 2,000,000 tons of profitable
ore is developed in the mine, giving an average value by
assay of $8.6S per ton. The Consolidated Langlaagte is an-
other Barnato mine, which during the year has done excep-
tionally well. Working costs have been reduced 24c. per ton,
while the profitable ore reserves are estimated at 2,194,408
tons worth $7.40 per ton. Like the Van Ryn Deep, this is
another Barnato mine likely to yield even better results this
year. The Government Gold Mining Areas at Modderfontein
are also improving in the matter of development, ore re-
serves at present being about 1,250,000 tons averaging $6.35
per ton. It is to these three mines that the Barnato house
is looking for most of the improvement in the immediate
future, and no doubt they will more than make up for any
marked decline the older mines of the group will show for
some time to come.

The Albu group of mining companies also held their annual
meetings during the week. The most promising of these is
the Meyer & Charlton, which at the present time has the
highest recovery value of any mine on the Rand, while work-
ing costs are being reduced. Several of the mines in this
group continue somewhat under a cloud, notably Cinderella
Consolidated, New Goch, and the Rand Collieries, and it looks
as though some time will elapse before the necessary capital
will be obtained for such undertakings as Cinderella Con-
solidated, Steyn Estates, and West Rand 'Consolidated.

The Consolidated Mines Selection group has also held
meetings during the week, without, however, having anything
particularly cheerful to report. Brakpan, the principal mine
of the group, did worse than usual during the year, develop-
ment assays falling away considerably; but during the first
few months of the year quite one-half of the ore developed
has proved unprofitable. The Springs mine seems to be open-
ing fairly well, but the ore here is somewhat erratic. A fair
proportion of the ore developed proved unprofitable, but there
seems every probability of the mine falling little short of
the Brakpan, underground conditions being somewhat similar
on both properties. The Springs mine is situated nearly in
the centre of the Far East part of the Rand, which is ex-
pected to do much to restore its prosperity, and to enable
the Rand to again report progressive gold outputs. When.
however, the Daggafontein. sinking about six miles farther
east, rraehes the reef, about the end of the year, the true
value and prospects of the Far East Rand will be better known.

18, !''ll

MINING AND m UN HI It I'KI SS

II I

mining in South Attica ha» recenllj iu
lax lion, sopeclall]

thf ili" I in [iion.ir* in Qertnan Africa. At

unond Bines t| Klmberley had practically

ttir »! worlds diamond markets at their nierv) , bill

recent discoveries of dlamnud mines In other i.irr, ol South

map BB0W13G DISTHIBI iiiix 01 DIAMONDS l\ BOUTB Mini A.

Africa have put quite a different complexion on the diamond
mining Industry. The Transvaal, with its Premier mine near
Pretoria, can now boast of possessing one of the largest and
most Important diamond producers in the world, while the
increasing production of alluvial diamonds in Africa has
somewhat complicated the markets. So great has the diamond
production of Africa become, that a conference was to be held
in London during June, as mentioned In this journal of June 6.
During May. Rand mines treated 2,196,287 tons of ore averag-
ing $6.30 per ton. the lowest average in the last twelve months.
Working costs were $4. OS per ton, which was equalled in Janu-
ary. 191". Total profit for the month of May was n.ull.968.

J0PL1N, MISSOURI

Sum (mi National Geologists Co-opehati in Bxpebimextal
Wiikk. — Minim. Obes PEOM Si hi kCE DOWH. — NOTES OS mi
Distbk t'a Mixes.

H. A. Buehler. state geologist of Missouri. C. A. Wright,
connected with the D. S. Bureau of Mines, and other geol-
ogists and mining engineers who are connected with both
the state and federal departments of mining and geology,
have established headquarters in Joplin. and a campaign of
experimental work which will cover many months is being
planned. Flotation processes will be tried out. this feature
of the work being considered of much importance in view
of the fact that the recovery of zincblende has never been
what would be considered thorough, and therefore anything
that will tend to bring about a more perfect recovery will
be heralded as a great boon to the local industry. The study
of the geology of the district, the character of the ores, the
details of mining and milling, will be given due consideration,
and interesting reports on the work thus undertaken will be
looked for with much enthusiasm by local operators and others
interested in the district. The oil flotation process has been
tried at only one place in the district, namely, at the prop-
erty of the Underwriters Land Co.. west of Joplin. where

bj Hays * rMUll

nt the . x|.. t tun in i„ .,,, ,| lr

PrtsrWa ml indled.

Modern pumping equipment in in draining the

Bm b inn, In the northwest part of Joplin, where

old types »f pmii|ii railed, ai art an "■>*

belting Into ground thai baa been under water for many
ran going fsi bakra the old let

■hallow dereloi ni ol Importance is balm

ducted, »nrk at one or two iiiintn being dona from th

town In the form of strip pits. This shallow work Is

being dona where the ore is found within four or ti % •

of the surface. Plans for the construction of a mill to handle
the shallow ore. and also to do custom milling from other

mines on the lens... are being completed. The bus., is held
by the Lona Kim Development Oo. and Includes 880 acres

Of the l'liher Lead Co.'s land ami property "1 the (iranliy

Mintug & S Itlng t'o About twenty small operators are

at work. Two large pumping plants are maintained, the
ground being drained lo a depth of ll'U fi

Missouri will have a mines nnd mineral exhibit at the
Panama-PadDa Exposition which will cost between $6000 and'
STniiii. and detailed plans for the arrangement of the various

displays have been completed by otto Uuhi. of Joplin, and

Forwarded to John I.. McNutt, of Aurora, chairman of the
state commission having ihe Missouri exhibit in charge. A
floor space of SU by 100 ft. has been allotted for the Mis-
souri display, and this will be used in a manner which will
bring forth the mining industry of this state in an attractive
mdiiner. By a series of progressive displays, the visitor will
see the prospecting, mining, milling, and smelting methods
from the time the churn-drill begins to operate until the fln-
ished meial is produced. A complete concentrating plant of
25-ton daily capacity will be in steady operation. Concen-
trate will be produced from this mill just as It is from
the larger plants of this district. The exhibit will also take
in the disseminated lead industry of the southeastern part
of i he state, and the iron, copper, and coal mining of dif-
ferent portions of the state.

The Pocahontas Lead & Zinc Co.'s mill in the Thorns Sta-
tion district, once a heavy producer, has been converted into
a tailing mill by Bendelari & Funk: tables have been installed
and various changes made in the equipment of the mill by
which the plant will be in shape to handle the tailing. The
shafts of the Company's mine are still sealed, although it
is more than likely that the disastrous fire which broke out
in the heavily timbered portions of the ground has long
since subsided. It is said this famous old producer may not
be reopened, as the land-owner. Miss Margaret Murphy, has
refused to permit the pillars of the mine to be withdrawn.
The pillars are rich in ore. This mine, in barely two years'
operation, is reported to have netted Miss Murphy nearly
$n5,imiii in royalties. She received a royalty of 10% of ore
sales.

Improvements at the Wingfield mine, on a 50-acre lease
of the Bowman, Scott & Ware land, north of Webb City, will
mean increased production from this property, which already
is handling 1000 tons of ore per day and which ranks as
one of the heaviest producers of blende concentrate in the
district. The mine is operated by Charles T. Orr and asso-
ciates. The same company operates the Bertha A. mine, on
the adjoining property owned by the Newell-Morse company.
An old shaft at the Bertha A is being placed in commission
again, and the output from this mine also will be increased.

At the beginning of July, zinc blende was weak at $::? to
$40 per ton, basis of 60% metallic zinc, compared with $41
to $44 basis for the corresponding period of 1913. Calamine
is strong at $22 to $23 per ton, basis of 40% metallic zinc,
or about $1 stronger than for the corresponding week of 1913.
Lead ore is dull at $46, basis of 80% metallic lead, compared
with $52.50 for the corresponding week of 1913.

114

MINING AND SCIENTIFIC PRESS

July IS. l:'14

ARIZONA
Cochise County

Various mine contests were held at Bisbee on July 4, with
the following results: Nipper drilling contest: first prize
of $250 won by Robert Lyons, Andy Hooks, and Harry Lyons,
who drilled 49 in. in 15 min., followed by Lawrence Ligon,
Louis Oites, and Mitchell Bogice, winning the second prize
of $125 with 32 in. This team had trouble with their steel
breaking and lost considerable time. In the stope machine-
drilling contest the first prize of $75 was won by Albert Peter-
son, who drilled 12% in. The second prize of $50 was won by
A. D. Fenwick, drilling 72% in. In the timbering contest the
first prize of $100 was won by Johnson and Butbrae in 13
min., 57 sec; also most points for having set level, plumb,
and square, also for placing blocks and wedges. The second
prize of $50 was won by Jacobson and Martin in 17 min., 40
sec; also second best on points. There were four entries.
In the first-aid contest the first prize of $75 was won by
the Czar team, Pat Nanna, captain. The second prize of $40
was won by the Gardner team, Francis Webster, captain.
There were three entries. There was a difference of only one
point between these teams and the judges had considerable
trouble in reaching a decision. In the mine-rescue contest
the first prize of $75 was won by the Calumet & Arizona team.
Walter Haile. captain, and the second prize of $40 by the
Copper Queen team. Thomas Stetson, captain.
Gila Coim v

(Special Correspondence.) — Underground work at the Miami
mine in June totaled 2910 ft., while 106.312 tons of ore was

milled. Lining of the Inspiration main shaft is the most

Important work at the mine. Underground bins have yet
to be cut out. That at 600 ft. will have ;i capacity of 3000

tons. Slag foundations are being poured for two of the

reverberatory furnaces of the International company. Con-
crete amounting to 400 cu. yd. is being poured for the blow-
ing engines' foundation. Work on the Magma concentrator

at Superior is well ahead. Electric power from Roosevelt
has been available for some lime. It is probable that a
long aerial tram will be constructed from the mine to the
smelter being erected at Miami.

Miami. July 1».

Competitive tests are being made at the Inspiration be-
tween Minerals Separation and Callow flotation plants. Re-
sults have not been made public. A. M. Cobb has been elected

the first mayor of Miami. The new Aldrich electric pump

is working at 1800 ft. in the Old Dominion mine. This and the
Arizona Commercial mine are to be connected on the 1200-ft.
level. The basic converter has been at work for a year with-
out relining, producing 32.000.000 lb. of copper.
Mohave County

During June the Tom Reed 20-stamp mill and cyanide plant
produced gold worth $106,000. Rich ore is being mined

from the 500-ft. level of the mine. Good ore is being opened

at 400 ft. in the Nevada-Arizona mine. A mill is being

erected at the old Fay mine. The Schuylkill mine has been

leased to California and Oregon men.

CALIFORNIA
The State Mining Bureau has distributed copies of Bulletin
No. 67, Minerals of California,' by Arthur S. Eakle, consist-
ing of 226 pages and an index. This work is just off the

press, and should be in the hands of all California mining
men. A list in 1866 included 75 minerals, another in 1884
included about 150, while the present work includes over
300, with many sub-species and varieties. A bibliography on
California minerals is included. The book is divided into
the following chapters: Native Elements; Sulphides, Arsen-
ides, Selenides, Tellurides, and Sulpho-salts; Haloids; Oxides
of Hydrogen, Silicon, and Semi-metals; Oxides of the Metals;
Carbonates; Anhydrous Silicates; Hydrous Silicates and
Titano-Silicates; Phosphates, Vanadates, etc.; and Sulphates
and Hydrocarbons. Chapter XII covers minerals arranged
according to the elements, and mineral distribution by coun-
ties. With Bulletin 585, Useful Minerals of the United States,'
recently published by the U. S. Geological Survey, mining
men have two very useful books.

The report of the statistician of the Industrial Accident
Commission of the State of California for the first six months
of 1914 has just been published. It shows some startling
figures relative to the heavy toll of industry in terms of
human lives and bodily injuries. A total of over 26,000 acci-
dents has been reported to the Commission during the half-
year ended July 30. Of these. 25. 475 resulted in temporary dis-
abilitv. approximately 600 caused permanent disability, while
223 resulted in death. During June alone over 7500 acci-
dents were reported. 10 of which were death eases, while 184
caused permanent disability.

Nevada County

The Red Ledge mine has been bonded to a New York syn-
dicate, headed by W. F. Meeks, for about $150,000.
San Bernardino County
Sixteen suits by Colton orange-growers against the Cali-
fornia Portland Cement Co. have been settled for $116,831. By
uent. the Company purchased 135 acres of land adjoin-
ing its property for $92,450, an average of $6S5 per acre.
This will permanently end all suits. The Company's plant
has a capacity of 5000 bbl. of cement per day, and it is pro-
posed to increase this to 9000 bbl. at an expenditure of
$1,000,000.

Sierra County
There are 35 men working at the Croesus or Plumbago mine,

and high-grade ore is being extracted. The Independence

shaft is down about 300 ft. Some good shoots of ore have

been opened in the Kate Hardy mine. Work is to be started

by M. W. Davis and associates on two placer locations on
Oregon creek. A gravel channel is capped by lava, but good
yields are expected.

Tuolumne County
A prize of $200 for drilling at Sonora was won by W. Pedro
and Fred Marcus, who put in a hole 37 in. in 15 minutes,
followed by J. Page and F. Bartlett with 34% in; J. and T.
Lumsden with 32% in., and G. Zackovich and J. Burbank with
31 inches.

COLORADO
Clear Ckeek County

A large station has been cut at the 860-ft. point in the
main raise of the Capital mine. A good deal of water is
flowing from this ground. An adit has been driven 610 ft.
to meet this raise. Lessees are busy in the various sections
of the mine. The Westinghouse mine locomotive, working
in the main adit, gives no trouble. Eighteen inches of

18, 1914

MINING IENTIFK PRI

ii .

baa i-

• imalltd in iii"

iniiiK (.. jmii|, it..- Ramadala claims

<>n. i« bjehIii batng sampled.
■ tin- Qold Prince

t\ nit: vini:i(i\ histrict. Colorado.

mine, mill, and Irani way in n' recently sold to the Federal

Trust Co. of Boston. The San Antonio Mining Co. Is being

reorganized. Twenty men are working at the Hamlet mine.

Mines In the district produced 420 tons of smelting ore

and 18,720 tons of content rate during June.

Tit.i.Ki: ecu \ ii (Cbipfu Cheek i

Twelve men are laying track, cutting a ditch, and doing
other preparatory work a, the Roosevelt drainage tunnel.
Connection was made from the beading of the tunnel
ft. beyond the El Paso company's main shaft. The air was

fair. Trouble on the Short Line from Cripple Creek to

Colorado Springs is hampering ore shipments. The Last

Dollar mine is again being opt rated. Rain interfered with

July 4 siiorts to some extent. In the drilling contest. Car-
roll and Gay carried ofT the first prize of $100. in double-hand
work, drilling a hole :I2 in. deep in Gunnison granite
in the alloted time of 1". minutes. Hart and Adams, who
drilled tlrst. received second prize, drilling 27 : S, in., while
Lund and Gustafson were third with 25 in. In the single-
hand drilling contest John P. Hinds carried off first prize of
|S0, drilling 16A In., William Fabry was second with l2Va
in., and F. C. O'Neal was third, only putting his hole down S
inches.

IDAHO
Shoshone County

Drilling contests at Wallace on July 4 resulted as follows:
Four teams drilled, and St. Germain and Rossman of the

with M In

■-'■urn third will

and Km<. ii.i, ol Mutt... fourth «
».i« won I

drilling IT* In In

HorrlMB i

of Wallace, while S|. rltl.il ami I

rman ami i nd the

..i the North I

VICB1QA \

H II I.' 1 . < '"I Ml

The coal <'t maintaining the militia in thi mntry

during the strike last muter amounted to $t".'.. It waa

announce d on Jul) i"

i/"\ TANA

il ibini mining districts in southwestern Montana are
deacrl port just Issued bj the r. s. Geological Bar-

rel as nun. tin 574, The Mining Districts .it the union
Quadrangle, Montana, and Adjacent Areas,' b) \ N. Wlnchell,
The ai.a described »a> ol great Importance In the earlj de
^.•!"i "t "' Montana, for it was the discovery of gold In

the stream.- oi this region that led to the influx of popula-
tion and the eventual settlement of the slate. The Dillon
quadrangle comprises about 3200 squart milt . the Butte
copper-mining district is Immediately north of it. and indeed
two of the Butte smelters are within It. The projected Butte,
Wisdom & Pacific railroad, upon which construction Is soon
to commence, will tap certain of the districts described in
Mr. WlncheU's report, notably the Elkhorn and Vlpond dis-
tricts in Beaverhead enmity.

The metalliferous mineral resources of the Dillon quad-
rangle and adjacent areas Include gold, silver, copper, and
lead, and smaller quantities of zinc, iron, manganese, and
tungsten, and their distribution, mode of occurrence, geologic
features, and origin are discussed In Mr. WlncheU's report.
The metallic ore deposits of the region occur in about thirty
more or less well defined districts, and these are described
individually. The report forecasts the future of the mining
Industry in the region, suggesting the probability that placer
i- were nol destroyed but simply burled by the flows
of basalt. If they are not too deeply covered by volcanic ash
and lava flows, it is possible that they may in the future
supply the material for extensive mining operations.

VEVADA

According to F. M. Manson, general manager of the West-
ern Ore Purchasing Co.. mining conditions throughout Nevada
are exceptionally good, and greater activity is looked for.
The Goldfield district leads others in ore shipments to the
Company's plants. The Seven Troughs district is develop-
1 ii .ii the Nevada Short Line, or Codd railway, to
Rochester Is finished, large shipments should be made from
that district. The Bullion. Haystack, and Pine Creek districts
arc quite promising.

The itinerary of Bureau of Mines Billings mine-rescue car
No. •"• Is as follows: July 13 to 18, Goldfield Consolidated,
Jumbo Extension, and Florence mines; July 20 to 25, Tono-
pah Mining. Montana Tonopah, Belmont, West End. Tonopah
Extension, and North Star mines; July 27 to August 1, Round
Mountain mine: August '■'■ lo S, Pittsburg Silver Peak mine
at Blair: August 10 to 16, Nevada Wonder mine at Wonder;
August 17 to 22, Nevada Hills mine at Fairview; and August
24 to 29, demonstrations to university mining students and
railway employees at Reno and Sparks.

E.-MKRALDA COUNTY

Great Interest was shown In the double and single-handed

116

MINING AND SCIENTIFIC PRESS

July 18, 1H14

rilling contests held at Qdtdneld on July 4. In the

doubles, Schratu and Olson won first prize ($600), drilling

In.; McCann and Collins, seeond ($200), 56 A In.;

Impola and Hokken, third (two suits of clothes), 54Vs In. In

the single banded contests. Paul Mali! won Brsl prize ($150),

drilling 3SVj i"-: Fete Vauola, second (|B0), 80% In.; and

ti Mltrovltch, third (one suit of clothes). 28ft inches.

Hi .MiKii.ii't Co< S 1 1

(Special Correspondence.) — Director* of the Rochester
.Mines Co. have extended leases of the Rochester Hills Min-
ing Co. and Big Four Mining Co. one year, to December 7,
The Four J'a Mining Co., which adjoins the Rochester
Hills, expires in .Inly 1915. The Rochester Hills has cut a
m w vein in the Cawsten adit level, a vertical depth of 40(1
ft., which is believed to be the 'bach vein' and has never been
iped. The depth on the dip of the vein is 520 ft. The
ry was made in a cross-cut 40 ft. east of the shaft,
where the vein is reported by the management to be 12 ft.
wide. Five feet is worth $24 to $32 per ton. the balance of

the vein being good milling ore.- A. A. Codd, president

of the Nevada Shorl Line railroad, which is being constructed
up Rochester canon to the mine, states that track-laying will
commence July 20. and that the road will be completed to
the town of Rochester by Labor Day, when a big celebration

is planned. It Is said that John F. Cowan, president and

manager of the Rochester Mines Co.. has financed a custom
mill lor Rochester ores, which may be built at Nenzel, the
terminus of the Nevada Short Line on the Southern Pacific,
where a reliable supply of water may be had. A Nevada
dicate, which is said to have secured power rights of the
Lahontaii dam tinni Hie r. S, Reclaniun ce, is endeav-

oring to secure a contract to furnish electric power for the

proposed plant. The Rochester Hills and Big Four leases

continue to ship 76 tons of ore per day. The Nevada Packard
is shipping three to four cars per month, with an occasional
car from other leases in the district. A feeling of optimism
pervades the camp.

Rochester, July 9.

in June there was 1400 tons of ore worth $35,000 shipped
from Rochester. The average value of ore produced in is
months was about $25 per ton.

Lincoln County

On account of the success of the chlorination process at
Park City. Utah, a local syndicate is planning to use the
process to treat the low-grade lead-silver-zine ores of Pioche.
Old dumps contain a good deal of lead-silver-gold ore.

N'VK CorXTY

An excellent brochure. 'Tonopah: Past. Present, and Future,'
lias been published by Charles A. Stoneham & Co. of New
York. It consists of 16 pages with good illustrations of mines
and mills, and also claim maps in silver tint. The history
of the camp is described, and all necessary details are given
to enable mining men to understand the properties being

developed and producing silver. During the week ended

July 4. the mines produced 9252 tons of ore worth $254,620. In
the quarter ended May 31, 1914, the Belmont company's rev-
enue was $S29,962, of which $454,351 was profit. The avail-
able resources amount to $1,447,761. The West End Consol-
idated Co. has filed an answer to the Jim Butler Tonopah
Mining Co. in the latter's suit concerning wrongful extraction
of ore. During May the Extension made a profit of $19,090.
There have been labor troubles during the past week at
Tonopah, and it appears that the I. W, W. is about to make
Itself a nuisance as elsewhere of late. Extensive development
is being started at the Jim Butler claims. The Montana mill
is treating 150 tons per day.

Storey County

The U. S. Bureau of Mines rescue car No. 5 arrived at Vir-
ginia City from Ely on July 6. In charge of E. Steidle and

<;. W. Riggs. On July g and H there was instruction on

the 1000 and 2." -ft. levels of the C. & C. shaft with oxygen

helmets, also In injuries of all kinds. As a result of this
visit, two efficient teams have been developed here. The car
left tor Goldfleld on July 11.

White Pini Couhty
A mine rescue and first-aid contest was held at Ely on July
^ under the joint auspices of the American Red Cross and
the L. S. Bnfvau Of Mines. The rescue contest of $50 was
won by a team from (lie Nevada Consolidated company's Vet-
eran mine, captain J. C. Metcalf. with H. P. Carten, E. L.
Vetter, W. J. Murphy, and Patrick Friel. The problem used
in this event was as follows: Fire in miniature mine. Res-
cue team explores imaginary smoke area, rescuing miner
overcome by gas and smoke: every safety precaution as prac-
tised by the I'. S. Bureau of Mines being observed. In the
first-aid contest of $75. the Copper Flat team won, captain
C. H. Kay, with A, P. Bufflngton. R. F. Workman, W. R. Work-
man, and John Minnock. There were also Greek and Jap-
anese teams trom McGill, who were trained in army tactics
in their respective countries. The Japanese team is prob-
ablj ibe only Japanese first-aid team in America. Problems

ELY, NEVADA.

used in the drill were as follows. One-man events: (1) Miner
loading round of holes: puts oft shot; he is overcome by pow-
der smoke: rescue patient and restore breathing; burned
about face and chin. (21 Man found under fall of roof, suf-
fering from following injuries: fracture of sixth, seventh, and
eighth ribs on left side, fracture of left kneecap. (3) Miner
starting hole with piston drill; helper struck in left eye by
Hying chips: cut eye, severe bleeding: falls back, spraining
left wrist. 1I1 Man working in smelter severely burned on
right side and right forearm by explosion of matte pot.

(5) Brakeman on slag train slips on rail, engine runs over
left leg, cutting it off 4 in. above knee; man severely shocked.

(6) Demonstrate four methods of one-man carry, including
assistance to walk. In the two-man events were to be shown
three methods of two-man carry.

According to Safely First, the Nevada Consolidated com-
pany's monthly bulletin, there were no accidents at either
the Veteran mine or concentrator, but at Copper Flat there
were 15 disabling accidents. The large concrete central hos-
pital at East Ely is described and illustrated in this bulletin.

OREGON

Jackson COUNTY

(Special Correspondence.) — The Purkeypile mine, in the
Gold Hill district, has been bonded by southern Oregon men.
A stamp-mill and other equipment has been ordered from San
Francisco. The mine's output to date is over $75,000. Gold
Hill mines are fairly active, judging by gold receipts at the
local bank.

Gold Hill, July 10.

Jnl> 18, l''lt

Ml\|\t. \ND S( II. Mil It PR

117

UTAH

Hi Mta <

Jl Ml OOI KT1

ore amounting '
»„rii. M i r i ..in i in' Tlntlc district during

• iniif or 1914. Tin- ihlpi

■ iiulal Km Oon

■olldati d IS ; Iroo B I Blue Bell

Grand I Victoria, n;i. Qold Chain,

Slav n.n ido i'i. Bullion

Back, 22 anion,

Sharp, 11; Lower Mammoth, 9 G
: Eureka Hill. 3: Yank..'. 5; Tlntlc stuml-
lolldated, l. United Ore Bampli
tnlted Tlntlc »; Black Jack, 5; Ridge 4 Valley, 2; Victor
,-ador lease, l ; K. I., i

relopment, -: Cllft, l. Sunbeam, 8; Minnie
Moore, 4. Showers, (; and Tesora. 1 car.

II shoots of rich gold-etlver-copper ore are found al
i 900 it. in ill" Grand Centra] mine, and twi
of this ore are shipped each month. About l"" tons In June
returned the Company 110,000.— qulpmenl is being

Installed in the tlold Chain mine.

WASElNGTOh
Okakooak Coi mv
Correspondence.) — Two stamp-mills are now work-
ing lu the Simllkameen part of this county, both under the
management of the United Mines, ol which .1. L, Harper is
idlng man. At the Owasco are 10 stamps and Wllfley
tables, ami a ball-mill is being added to increase the mills'
us per day. Concentrate sent to the Green-
wood smelter assayed $90 per ton. The mill at Night Hawk
has 20 stamps and four Wllfley tallies, treating or,- From the
Caaba mine.

Nlghthawk, June 20.

WYOMING

The total value of gold, silver, and copper in this state In
1913 was $84,474, an increase of $57,527 over that of 1912,
according to the U. S. Geological Survey. There were 15
producing mines, of which six were deep and nine were